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_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:39:06,349 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:39:06,350 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:39:06,362 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:39:06,363 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:39:06,364 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:39:06,365 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:39:06,367 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:39:06,369 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:39:06,370 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:39:06,370 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:39:06,371 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:39:06,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:39:06,373 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:39:06,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:39:06,375 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:39:06,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:39:06,377 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:39:06,379 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:39:06,381 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:39:06,382 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:39:06,383 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:39:06,386 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:39:06,386 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:39:06,386 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:39:06,387 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:39:06,388 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:39:06,389 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:39:06,390 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:39:06,391 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:39:06,391 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:39:06,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:39:06,392 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:39:06,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:39:06,394 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:39:06,394 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:39:06,395 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 11:39:06,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:39:06,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:39:06,415 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:39:06,416 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:39:06,416 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:39:06,416 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:39:06,416 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:39:06,420 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:39:06,420 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:39:06,420 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:39:06,420 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:39:06,420 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:39:06,421 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:39:06,422 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:39:06,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:39:06,423 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:39:06,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:39:06,425 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:39:06,425 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:39:06,425 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:39:06,425 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:39:06,425 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:39:06,426 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:39:06,426 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:39:06,426 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:39:06,426 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:39:06,427 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:39:06,427 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:39:06,427 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:39:06,427 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:39:06,427 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:39:06,428 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:39:06,428 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:39:06,428 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:39:06,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:39:06,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:39:06,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:39:06,523 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:39:06,524 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:39:06,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label14_true-unreach-call.c [2018-09-18 11:39:06,867 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8299b78a1/e57ce6d5fa6c4bd390b5e1e654cc7468/FLAG8cb496399 [2018-09-18 11:39:07,402 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:39:07,403 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label14_true-unreach-call.c [2018-09-18 11:39:07,435 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8299b78a1/e57ce6d5fa6c4bd390b5e1e654cc7468/FLAG8cb496399 [2018-09-18 11:39:07,451 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8299b78a1/e57ce6d5fa6c4bd390b5e1e654cc7468 [2018-09-18 11:39:07,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:39:07,466 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:39:07,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:39:07,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:39:07,475 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:39:07,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:39:07" (1/1) ... [2018-09-18 11:39:07,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:07, skipping insertion in model container [2018-09-18 11:39:07,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:39:07" (1/1) ... [2018-09-18 11:39:07,492 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:39:09,113 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:39:09,131 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:39:09,825 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:39:10,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10 WrapperNode [2018-09-18 11:39:10,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:39:10,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:39:10,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:39:10,226 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:39:10,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:10,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:39:11,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:39:11,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:39:11,325 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:39:11,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (1/1) ... [2018-09-18 11:39:11,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:39:11,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:39:11,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:39:11,734 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:39:11,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (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 11:39:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:39:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:39:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:39:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:39:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:39:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:39:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:39:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:39:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:39:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:39:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:39:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:39:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:39:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:39:22,387 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:39:22,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:39:22 BoogieIcfgContainer [2018-09-18 11:39:22,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:39:22,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:39:22,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:39:22,393 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:39:22,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:39:07" (1/3) ... [2018-09-18 11:39:22,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12df1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:39:22, skipping insertion in model container [2018-09-18 11:39:22,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:10" (2/3) ... [2018-09-18 11:39:22,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12df1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:39:22, skipping insertion in model container [2018-09-18 11:39:22,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:39:22" (3/3) ... [2018-09-18 11:39:22,397 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label14_true-unreach-call.c [2018-09-18 11:39:22,408 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:39:22,420 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:39:22,498 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:39:22,499 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:39:22,499 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:39:22,499 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:39:22,499 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:39:22,499 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:39:22,500 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:39:22,500 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:39:22,500 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:39:22,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:39:22,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-18 11:39:22,553 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:39:22,555 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] [2018-09-18 11:39:22,556 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:39:22,562 INFO L82 PathProgramCache]: Analyzing trace with hash 963614956, now seen corresponding path program 1 times [2018-09-18 11:39:22,564 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:39:22,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:22,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:39:22,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:22,619 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:39:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:39:22,991 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:39:23,114 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 11:39:23,116 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:39:23,116 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:39:23,117 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:39:23,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:39:23,141 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:39:23,142 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:39:23,145 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-18 11:39:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:39:31,547 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-09-18 11:39:31,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:39:31,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-09-18 11:39:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:39:31,585 INFO L225 Difference]: With dead ends: 3097 [2018-09-18 11:39:31,585 INFO L226 Difference]: Without dead ends: 1975 [2018-09-18 11:39:31,598 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 11:39:31,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-09-18 11:39:31,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-09-18 11:39:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-09-18 11:39:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-09-18 11:39:31,777 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 48 [2018-09-18 11:39:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:39:31,777 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-09-18 11:39:31,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:39:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-09-18 11:39:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-18 11:39:31,785 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:39:31,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:31,786 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:39:31,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1268878372, now seen corresponding path program 1 times [2018-09-18 11:39:31,786 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:39:31,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:31,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:39:31,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:31,788 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:39:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:39:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:39:32,148 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:39:32,148 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:39:32,148 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:39:32,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:39:32,150 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:39:32,151 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:39:32,151 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-09-18 11:39:55,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:39:55,807 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-09-18 11:39:55,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:39:55,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2018-09-18 11:39:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:39:55,838 INFO L225 Difference]: With dead ends: 5736 [2018-09-18 11:39:55,838 INFO L226 Difference]: Without dead ends: 3768 [2018-09-18 11:39:55,844 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 11:39:55,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-09-18 11:39:55,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-09-18 11:39:55,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-09-18 11:39:55,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-09-18 11:39:55,976 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 124 [2018-09-18 11:39:55,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:39:55,976 INFO L480 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-09-18 11:39:55,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:39:55,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-09-18 11:39:55,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-18 11:39:55,990 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:39:55,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:55,991 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:39:55,991 INFO L82 PathProgramCache]: Analyzing trace with hash -594329152, now seen corresponding path program 1 times [2018-09-18 11:39:55,991 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:39:55,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:55,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:39:55,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:55,996 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:39:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:39:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:39:56,211 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:39:56,211 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:39:56,211 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:39:56,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:39:56,212 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:39:56,212 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:39:56,213 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-09-18 11:40:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:40:25,953 INFO L93 Difference]: Finished difference Result 13665 states and 21761 transitions. [2018-09-18 11:40:25,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:40:25,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2018-09-18 11:40:25,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:40:26,009 INFO L225 Difference]: With dead ends: 13665 [2018-09-18 11:40:26,010 INFO L226 Difference]: Without dead ends: 9985 [2018-09-18 11:40:26,035 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:40:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2018-09-18 11:40:26,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9795. [2018-09-18 11:40:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9795 states. [2018-09-18 11:40:26,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 14501 transitions. [2018-09-18 11:40:26,311 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 14501 transitions. Word has length 138 [2018-09-18 11:40:26,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:40:26,312 INFO L480 AbstractCegarLoop]: Abstraction has 9795 states and 14501 transitions. [2018-09-18 11:40:26,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:40:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 14501 transitions. [2018-09-18 11:40:26,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-18 11:40:26,316 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:40:26,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:26,317 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:40:26,317 INFO L82 PathProgramCache]: Analyzing trace with hash -221189476, now seen corresponding path program 1 times [2018-09-18 11:40:26,318 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:40:26,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:26,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:40:26,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:26,319 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:40:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:40:26,620 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:40:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:40:26,679 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:40:26,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:40:26,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:40:26,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:40:26,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:40:26,680 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:40:26,680 INFO L87 Difference]: Start difference. First operand 9795 states and 14501 transitions. Second operand 6 states. [2018-09-18 11:40:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:40:40,436 INFO L93 Difference]: Finished difference Result 34191 states and 53807 transitions. [2018-09-18 11:40:40,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:40:40,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-09-18 11:40:40,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:40:40,573 INFO L225 Difference]: With dead ends: 34191 [2018-09-18 11:40:40,573 INFO L226 Difference]: Without dead ends: 24402 [2018-09-18 11:40:40,881 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 11:40:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24402 states. [2018-09-18 11:40:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24402 to 24169. [2018-09-18 11:40:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24169 states. [2018-09-18 11:40:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24169 states to 24169 states and 34072 transitions. [2018-09-18 11:40:41,443 INFO L78 Accepts]: Start accepts. Automaton has 24169 states and 34072 transitions. Word has length 156 [2018-09-18 11:40:41,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:40:41,443 INFO L480 AbstractCegarLoop]: Abstraction has 24169 states and 34072 transitions. [2018-09-18 11:40:41,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:40:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 24169 states and 34072 transitions. [2018-09-18 11:40:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-09-18 11:40:41,449 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:40:41,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:41,452 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:40:41,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1233336343, now seen corresponding path program 1 times [2018-09-18 11:40:41,452 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:40:41,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:41,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:40:41,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:41,454 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:40:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:40:41,728 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:40:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:40:42,131 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:40:42,132 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:40:42,132 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:40:42,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:40:42,132 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:40:42,133 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:40:42,133 INFO L87 Difference]: Start difference. First operand 24169 states and 34072 transitions. Second operand 6 states. [2018-09-18 11:40:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:40:52,511 INFO L93 Difference]: Finished difference Result 62339 states and 97861 transitions. [2018-09-18 11:40:52,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:40:52,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2018-09-18 11:40:52,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:40:52,690 INFO L225 Difference]: With dead ends: 62339 [2018-09-18 11:40:52,691 INFO L226 Difference]: Without dead ends: 38176 [2018-09-18 11:40:52,759 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:40:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38176 states. [2018-09-18 11:40:53,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38176 to 37979. [2018-09-18 11:40:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37979 states. [2018-09-18 11:40:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37979 states to 37979 states and 54438 transitions. [2018-09-18 11:40:53,631 INFO L78 Accepts]: Start accepts. Automaton has 37979 states and 54438 transitions. Word has length 167 [2018-09-18 11:40:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:40:53,631 INFO L480 AbstractCegarLoop]: Abstraction has 37979 states and 54438 transitions. [2018-09-18 11:40:53,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:40:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 37979 states and 54438 transitions. [2018-09-18 11:40:53,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-18 11:40:53,639 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:40:53,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:53,639 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:40:53,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1930020088, now seen corresponding path program 1 times [2018-09-18 11:40:53,640 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:40:53,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:53,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:40:53,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:53,641 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:40:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:40:53,959 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:40:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:40:54,356 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:40:54,357 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:40:54,357 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:40:54,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:40:54,358 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:40:54,358 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:40:54,358 INFO L87 Difference]: Start difference. First operand 37979 states and 54438 transitions. Second operand 6 states. [2018-09-18 11:41:03,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:41:03,827 INFO L93 Difference]: Finished difference Result 83934 states and 123834 transitions. [2018-09-18 11:41:03,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:41:03,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2018-09-18 11:41:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:41:04,004 INFO L225 Difference]: With dead ends: 83934 [2018-09-18 11:41:04,005 INFO L226 Difference]: Without dead ends: 45961 [2018-09-18 11:41:04,100 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:41:04,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45961 states. [2018-09-18 11:41:05,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45961 to 45859. [2018-09-18 11:41:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45859 states. [2018-09-18 11:41:05,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45859 states to 45859 states and 62659 transitions. [2018-09-18 11:41:05,131 INFO L78 Accepts]: Start accepts. Automaton has 45859 states and 62659 transitions. Word has length 195 [2018-09-18 11:41:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:41:05,133 INFO L480 AbstractCegarLoop]: Abstraction has 45859 states and 62659 transitions. [2018-09-18 11:41:05,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:41:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 45859 states and 62659 transitions. [2018-09-18 11:41:05,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-09-18 11:41:05,147 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:41:05,147 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:41:05,148 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:41:05,148 INFO L82 PathProgramCache]: Analyzing trace with hash -559903430, now seen corresponding path program 1 times [2018-09-18 11:41:05,148 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:41:05,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:05,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:05,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:05,149 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:41:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:05,483 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:41:05,484 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:41:05,484 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 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 11:41:05,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:05,494 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:41:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:05,605 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:41:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-09-18 11:41:05,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:41:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-18 11:41:06,017 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:41:06,018 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 8 [2018-09-18 11:41:06,018 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:41:06,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:41:06,019 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:41:06,019 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:41:06,020 INFO L87 Difference]: Start difference. First operand 45859 states and 62659 transitions. Second operand 3 states. [2018-09-18 11:41:15,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:41:15,889 INFO L93 Difference]: Finished difference Result 113613 states and 159825 transitions. [2018-09-18 11:41:15,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:41:15,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2018-09-18 11:41:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:41:16,211 INFO L225 Difference]: With dead ends: 113613 [2018-09-18 11:41:16,211 INFO L226 Difference]: Without dead ends: 67760 [2018-09-18 11:41:16,512 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:41:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67760 states. [2018-09-18 11:41:18,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67760 to 66250. [2018-09-18 11:41:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66250 states. [2018-09-18 11:41:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66250 states to 66250 states and 86885 transitions. [2018-09-18 11:41:18,303 INFO L78 Accepts]: Start accepts. Automaton has 66250 states and 86885 transitions. Word has length 245 [2018-09-18 11:41:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:41:18,303 INFO L480 AbstractCegarLoop]: Abstraction has 66250 states and 86885 transitions. [2018-09-18 11:41:18,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:41:18,304 INFO L276 IsEmpty]: Start isEmpty. Operand 66250 states and 86885 transitions. [2018-09-18 11:41:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-09-18 11:41:18,318 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:41:18,318 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:41:18,319 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:41:18,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1429488488, now seen corresponding path program 1 times [2018-09-18 11:41:18,319 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:41:18,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:18,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:18,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:18,321 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:41:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:41:18,644 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:41:18,644 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:41:18,644 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:41:18,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:41:18,645 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:41:18,645 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:41:18,646 INFO L87 Difference]: Start difference. First operand 66250 states and 86885 transitions. Second operand 4 states. [2018-09-18 11:41:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:41:31,257 INFO L93 Difference]: Finished difference Result 181201 states and 246457 transitions. [2018-09-18 11:41:31,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:41:31,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 250 [2018-09-18 11:41:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:41:31,710 INFO L225 Difference]: With dead ends: 181201 [2018-09-18 11:41:31,710 INFO L226 Difference]: Without dead ends: 114957 [2018-09-18 11:41:31,963 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 11:41:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114957 states. [2018-09-18 11:41:34,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114957 to 114935. [2018-09-18 11:41:34,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114935 states. [2018-09-18 11:41:34,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114935 states to 114935 states and 147950 transitions. [2018-09-18 11:41:34,919 INFO L78 Accepts]: Start accepts. Automaton has 114935 states and 147950 transitions. Word has length 250 [2018-09-18 11:41:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:41:34,920 INFO L480 AbstractCegarLoop]: Abstraction has 114935 states and 147950 transitions. [2018-09-18 11:41:34,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:41:34,922 INFO L276 IsEmpty]: Start isEmpty. Operand 114935 states and 147950 transitions. [2018-09-18 11:41:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-09-18 11:41:34,943 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:41:34,943 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:41:34,943 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:41:34,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1533893792, now seen corresponding path program 1 times [2018-09-18 11:41:34,944 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:41:34,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:34,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:34,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:34,945 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:41:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:36,285 WARN L178 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-18 11:41:36,434 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 159 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:41:36,435 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:41:36,435 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 11:41:36,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:36,449 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:41:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:36,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:41:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:41:36,670 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:41:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:41:36,798 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:41:36,798 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2018-09-18 11:41:36,799 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:41:36,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:41:36,799 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:41:36,799 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:41:36,800 INFO L87 Difference]: Start difference. First operand 114935 states and 147950 transitions. Second operand 3 states. [2018-09-18 11:41:47,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:41:47,407 INFO L93 Difference]: Finished difference Result 228262 states and 294467 transitions. [2018-09-18 11:41:47,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:41:47,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2018-09-18 11:41:47,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:41:47,772 INFO L225 Difference]: With dead ends: 228262 [2018-09-18 11:41:47,773 INFO L226 Difference]: Without dead ends: 113333 [2018-09-18 11:41:48,029 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 517 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:41:48,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113333 states. [2018-09-18 11:41:49,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113333 to 110116. [2018-09-18 11:41:49,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110116 states. [2018-09-18 11:41:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110116 states to 110116 states and 132431 transitions. [2018-09-18 11:41:51,147 INFO L78 Accepts]: Start accepts. Automaton has 110116 states and 132431 transitions. Word has length 259 [2018-09-18 11:41:51,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:41:51,148 INFO L480 AbstractCegarLoop]: Abstraction has 110116 states and 132431 transitions. [2018-09-18 11:41:51,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:41:51,148 INFO L276 IsEmpty]: Start isEmpty. Operand 110116 states and 132431 transitions. [2018-09-18 11:41:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-09-18 11:41:51,183 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:41:51,184 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:51,184 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:41:51,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1570007302, now seen corresponding path program 1 times [2018-09-18 11:41:51,187 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:41:51,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:51,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:51,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:51,188 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:41:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 205 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-09-18 11:41:51,807 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:41:51,807 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 11:41:51,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:51,823 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:41:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:51,928 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:41:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-18 11:41:52,048 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:41:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 205 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-09-18 11:41:52,497 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:41:52,498 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 11:41:52,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:52,514 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:41:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:52,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:41:52,945 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-18 11:41:52,945 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:41:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 205 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-09-18 11:41:53,260 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:41:53,260 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:41:53,260 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:41:53,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:41:53,261 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:41:53,261 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:41:53,261 INFO L87 Difference]: Start difference. First operand 110116 states and 132431 transitions. Second operand 9 states. [2018-09-18 11:42:17,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:42:17,154 INFO L93 Difference]: Finished difference Result 263105 states and 341783 transitions. [2018-09-18 11:42:17,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-18 11:42:17,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 331 [2018-09-18 11:42:17,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:42:17,679 INFO L225 Difference]: With dead ends: 263105 [2018-09-18 11:42:17,679 INFO L226 Difference]: Without dead ends: 148066 [2018-09-18 11:42:17,909 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1346 GetRequests, 1322 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:42:17,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148066 states. [2018-09-18 11:42:19,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148066 to 147775. [2018-09-18 11:42:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147775 states. [2018-09-18 11:42:21,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147775 states to 147775 states and 187196 transitions. [2018-09-18 11:42:21,806 INFO L78 Accepts]: Start accepts. Automaton has 147775 states and 187196 transitions. Word has length 331 [2018-09-18 11:42:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:42:21,807 INFO L480 AbstractCegarLoop]: Abstraction has 147775 states and 187196 transitions. [2018-09-18 11:42:21,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:42:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 147775 states and 187196 transitions. [2018-09-18 11:42:21,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-09-18 11:42:21,836 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:42:21,836 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:21,836 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:42:21,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1282758528, now seen corresponding path program 1 times [2018-09-18 11:42:21,837 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:42:21,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:21,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:21,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:21,838 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:42:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:22,437 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:42:22,437 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 11:42:22,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:22,451 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:42:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:22,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:42:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:23,094 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:42:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:23,373 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:42:23,373 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 11:42:23,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:23,390 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:42:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:23,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:42:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:23,772 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:42:23,978 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:23,981 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:42:23,981 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-18 11:42:23,981 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:42:23,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:42:23,982 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:42:23,983 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:42:23,983 INFO L87 Difference]: Start difference. First operand 147775 states and 187196 transitions. Second operand 9 states. Received shutdown request... [2018-09-18 11:42:52,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-09-18 11:42:52,234 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:42:52,240 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:42:52,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:42:52 BoogieIcfgContainer [2018-09-18 11:42:52,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:42:52,241 INFO L168 Benchmark]: Toolchain (without parser) took 224778.28 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 845.1 MB. Max. memory is 7.1 GB. [2018-09-18 11:42:52,243 INFO L168 Benchmark]: CDTParser took 0.20 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 11:42:52,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2757.58 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 11:42:52,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 1098.94 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 995.1 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 189.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:42:52,245 INFO L168 Benchmark]: Boogie Preprocessor took 408.44 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:42:52,246 INFO L168 Benchmark]: RCFGBuilder took 10654.85 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 135.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 13.3 MB). Peak memory consumption was 702.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:42:52,247 INFO L168 Benchmark]: TraceAbstraction took 209851.49 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 618.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:42:52,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2757.58 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 1098.94 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 995.1 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 189.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 408.44 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10654.85 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 135.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 13.3 MB). Peak memory consumption was 702.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209851.49 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 618.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 135). Cancelled while BasicCegarLoop was constructing difference of abstraction (147775states) and FLOYD_HOARE automaton (currently 35 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (253931 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 209.7s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 184.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7897 SDtfs, 42945 SDslu, 6225 SDs, 0 SdLazy, 74168 SolverSat, 17170 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 148.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3858 GetRequests, 3731 SyntacticMatches, 14 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147775occurred 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: 14.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 5845 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 4105 NumberOfCodeBlocks, 4105 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5932 ConstructedInterpolants, 0 QuantifiedInterpolants, 4085462 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3339 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 4791/5056 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_label14_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-42-52-267.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label14_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-42-52-267.csv Completed graceful shutdown