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/Problem12_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:34:19,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:34:19,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:34:19,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:34:19,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:34:19,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:34:19,415 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:34:19,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:34:19,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:34:19,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:34:19,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:34:19,421 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:34:19,422 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:34:19,422 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:34:19,424 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:34:19,424 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:34:19,425 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:34:19,427 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:34:19,429 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:34:19,431 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:34:19,432 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:34:19,433 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:34:19,435 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:34:19,436 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:34:19,436 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:34:19,437 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:34:19,438 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:34:19,439 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:34:19,439 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:34:19,441 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:34:19,441 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:34:19,446 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:34:19,446 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:34:19,446 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:34:19,451 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:34:19,451 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:34:19,452 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 11:34:19,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:34:19,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:34:19,483 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:34:19,483 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:34:19,483 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:34:19,483 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:34:19,484 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:34:19,484 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:34:19,484 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:34:19,484 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:34:19,484 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:34:19,485 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:34:19,486 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:34:19,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:34:19,486 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:34:19,486 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:34:19,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:34:19,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:34:19,487 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:34:19,487 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:34:19,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:34:19,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:34:19,488 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:34:19,488 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:34:19,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:34:19,489 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:34:19,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:34:19,490 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:34:19,490 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:34:19,490 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:34:19,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:34:19,490 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:34:19,490 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:34:19,491 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:34:19,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:34:19,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:34:19,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:34:19,569 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:34:19,569 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:34:19,570 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label45_true-unreach-call.c [2018-09-18 11:34:19,985 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e91f52fa2/2e26a83b3e834800b5d4773e18c7e199/FLAG389e79b9d [2018-09-18 11:34:20,435 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:34:20,436 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label45_true-unreach-call.c [2018-09-18 11:34:20,467 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e91f52fa2/2e26a83b3e834800b5d4773e18c7e199/FLAG389e79b9d [2018-09-18 11:34:20,485 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e91f52fa2/2e26a83b3e834800b5d4773e18c7e199 [2018-09-18 11:34:20,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:34:20,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:34:20,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:34:20,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:34:20,509 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:34:20,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:34:20" (1/1) ... [2018-09-18 11:34:20,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8d764b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:20, skipping insertion in model container [2018-09-18 11:34:20,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:34:20" (1/1) ... [2018-09-18 11:34:20,528 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:34:21,820 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:34:21,842 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:34:22,532 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:34:22,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22 WrapperNode [2018-09-18 11:34:22,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:34:22,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:34:22,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:34:22,834 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:34:22,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:22,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:23,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:34:23,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:34:23,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:34:23,142 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:34:23,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:23,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:23,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:23,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:24,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:24,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:24,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (1/1) ... [2018-09-18 11:34:24,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:34:24,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:34:24,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:34:24,285 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:34:24,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (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 11:34:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:34:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:34:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:34:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:34:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:34:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:34:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:34:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:34:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:34:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:34:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:34:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:34:24,376 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:34:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:34:35,909 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:34:35,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:34:35 BoogieIcfgContainer [2018-09-18 11:34:35,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:34:35,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:34:35,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:34:35,914 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:34:35,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:34:20" (1/3) ... [2018-09-18 11:34:35,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5683b043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:34:35, skipping insertion in model container [2018-09-18 11:34:35,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:22" (2/3) ... [2018-09-18 11:34:35,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5683b043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:34:35, skipping insertion in model container [2018-09-18 11:34:35,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:34:35" (3/3) ... [2018-09-18 11:34:35,918 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label45_true-unreach-call.c [2018-09-18 11:34:35,928 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:34:35,938 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:34:36,007 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:34:36,008 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:34:36,008 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:34:36,008 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:34:36,008 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:34:36,008 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:34:36,008 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:34:36,009 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:34:36,009 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:34:36,048 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-18 11:34:36,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-18 11:34:36,059 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:34:36,060 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:34:36,061 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:34:36,069 INFO L82 PathProgramCache]: Analyzing trace with hash -427450892, now seen corresponding path program 1 times [2018-09-18 11:34:36,072 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:34:36,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:36,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:36,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:36,125 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:34:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:36,547 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:34:36,676 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 11:34:36,679 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:34:36,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:34:36,680 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:34:36,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:34:36,704 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:34:36,705 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:34:36,708 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-09-18 11:34:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:34:45,105 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-09-18 11:34:45,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:34:45,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-09-18 11:34:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:34:45,144 INFO L225 Difference]: With dead ends: 2446 [2018-09-18 11:34:45,144 INFO L226 Difference]: Without dead ends: 1604 [2018-09-18 11:34:45,156 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 11:34:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-09-18 11:34:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-09-18 11:34:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-18 11:34:45,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-09-18 11:34:45,366 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 58 [2018-09-18 11:34:45,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:34:45,367 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-09-18 11:34:45,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:34:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-09-18 11:34:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-18 11:34:45,375 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:34:45,376 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:45,376 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:34:45,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1706095754, now seen corresponding path program 1 times [2018-09-18 11:34:45,377 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:34:45,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:45,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:45,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:45,379 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:34:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:34:45,631 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:34:45,632 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:34:45,632 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:34:45,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:34:45,634 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:34:45,634 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:34:45,634 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 4 states. [2018-09-18 11:35:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:01,164 INFO L93 Difference]: Finished difference Result 6274 states and 11428 transitions. [2018-09-18 11:35:01,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:35:01,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-09-18 11:35:01,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:01,204 INFO L225 Difference]: With dead ends: 6274 [2018-09-18 11:35:01,204 INFO L226 Difference]: Without dead ends: 4676 [2018-09-18 11:35:01,215 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:35:01,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4676 states. [2018-09-18 11:35:01,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4676 to 4676. [2018-09-18 11:35:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4676 states. [2018-09-18 11:35:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4676 states to 4676 states and 7980 transitions. [2018-09-18 11:35:01,369 INFO L78 Accepts]: Start accepts. Automaton has 4676 states and 7980 transitions. Word has length 134 [2018-09-18 11:35:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:01,370 INFO L480 AbstractCegarLoop]: Abstraction has 4676 states and 7980 transitions. [2018-09-18 11:35:01,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:35:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4676 states and 7980 transitions. [2018-09-18 11:35:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-09-18 11:35:01,389 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:01,390 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:01,390 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:01,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1738242550, now seen corresponding path program 1 times [2018-09-18 11:35:01,391 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:01,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:01,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:01,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:01,393 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:01,655 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:35:01,656 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:35:01,656 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:35:01,656 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:01,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:35:01,657 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:35:01,658 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:35:01,658 INFO L87 Difference]: Start difference. First operand 4676 states and 7980 transitions. Second operand 6 states. [2018-09-18 11:35:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:11,119 INFO L93 Difference]: Finished difference Result 14179 states and 24917 transitions. [2018-09-18 11:35:11,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:35:11,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-09-18 11:35:11,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:11,187 INFO L225 Difference]: With dead ends: 14179 [2018-09-18 11:35:11,187 INFO L226 Difference]: Without dead ends: 9509 [2018-09-18 11:35:11,212 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:35:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9509 states. [2018-09-18 11:35:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9509 to 9424. [2018-09-18 11:35:11,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9424 states. [2018-09-18 11:35:11,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9424 states to 9424 states and 15810 transitions. [2018-09-18 11:35:11,524 INFO L78 Accepts]: Start accepts. Automaton has 9424 states and 15810 transitions. Word has length 172 [2018-09-18 11:35:11,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:11,525 INFO L480 AbstractCegarLoop]: Abstraction has 9424 states and 15810 transitions. [2018-09-18 11:35:11,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:35:11,525 INFO L276 IsEmpty]: Start isEmpty. Operand 9424 states and 15810 transitions. [2018-09-18 11:35:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-18 11:35:11,535 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:11,535 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:11,536 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:11,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1389226247, now seen corresponding path program 1 times [2018-09-18 11:35:11,536 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:11,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:11,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:11,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:11,538 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:35:12,406 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:35:12,406 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:35:12,406 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:12,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:35:12,407 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:35:12,407 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:35:12,408 INFO L87 Difference]: Start difference. First operand 9424 states and 15810 transitions. Second operand 6 states. [2018-09-18 11:35:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:37,266 INFO L93 Difference]: Finished difference Result 35003 states and 63247 transitions. [2018-09-18 11:35:37,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 11:35:37,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2018-09-18 11:35:37,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:37,425 INFO L225 Difference]: With dead ends: 35003 [2018-09-18 11:35:37,425 INFO L226 Difference]: Without dead ends: 25585 [2018-09-18 11:35:37,522 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:35:37,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25585 states. [2018-09-18 11:35:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25585 to 25392. [2018-09-18 11:35:38,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25392 states. [2018-09-18 11:35:38,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25392 states to 25392 states and 40392 transitions. [2018-09-18 11:35:38,324 INFO L78 Accepts]: Start accepts. Automaton has 25392 states and 40392 transitions. Word has length 199 [2018-09-18 11:35:38,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:38,325 INFO L480 AbstractCegarLoop]: Abstraction has 25392 states and 40392 transitions. [2018-09-18 11:35:38,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:35:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 25392 states and 40392 transitions. [2018-09-18 11:35:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-09-18 11:35:38,339 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:38,340 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:35:38,340 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:38,340 INFO L82 PathProgramCache]: Analyzing trace with hash 446131319, now seen corresponding path program 1 times [2018-09-18 11:35:38,341 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:38,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:38,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:38,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:38,342 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:35:38,599 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:35:38,599 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:35:38,599 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:38,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:35:38,600 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:35:38,600 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:35:38,600 INFO L87 Difference]: Start difference. First operand 25392 states and 40392 transitions. Second operand 4 states. [2018-09-18 11:35:48,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:48,156 INFO L93 Difference]: Finished difference Result 64805 states and 106421 transitions. [2018-09-18 11:35:48,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:35:48,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2018-09-18 11:35:48,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:48,334 INFO L225 Difference]: With dead ends: 64805 [2018-09-18 11:35:48,335 INFO L226 Difference]: Without dead ends: 39419 [2018-09-18 11:35:48,446 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 11:35:48,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39419 states. [2018-09-18 11:35:49,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39419 to 38651. [2018-09-18 11:35:49,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38651 states. [2018-09-18 11:35:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38651 states to 38651 states and 55714 transitions. [2018-09-18 11:35:49,415 INFO L78 Accepts]: Start accepts. Automaton has 38651 states and 55714 transitions. Word has length 207 [2018-09-18 11:35:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:49,416 INFO L480 AbstractCegarLoop]: Abstraction has 38651 states and 55714 transitions. [2018-09-18 11:35:49,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:35:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 38651 states and 55714 transitions. [2018-09-18 11:35:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-09-18 11:35:49,479 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:49,480 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:35:49,480 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:49,480 INFO L82 PathProgramCache]: Analyzing trace with hash -433421620, now seen corresponding path program 1 times [2018-09-18 11:35:49,480 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:49,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:49,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:49,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:49,482 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 102 proven. 106 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:35:50,275 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:35:50,275 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 11:35:50,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:50,292 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:35:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:50,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:35:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-18 11:35:51,006 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:35:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 102 proven. 106 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:35:52,170 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:35:52,170 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-18 11:35:52,170 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:52,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:35:52,171 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:35:52,171 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:35:52,172 INFO L87 Difference]: Start difference. First operand 38651 states and 55714 transitions. Second operand 5 states. [2018-09-18 11:36:04,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:36:04,744 INFO L93 Difference]: Finished difference Result 108409 states and 168802 transitions. [2018-09-18 11:36:04,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:36:04,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 348 [2018-09-18 11:36:04,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:36:05,185 INFO L225 Difference]: With dead ends: 108409 [2018-09-18 11:36:05,185 INFO L226 Difference]: Without dead ends: 69764 [2018-09-18 11:36:05,335 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 691 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:36:05,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69764 states. [2018-09-18 11:36:07,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69764 to 68883. [2018-09-18 11:36:07,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68883 states. [2018-09-18 11:36:07,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68883 states to 68883 states and 104002 transitions. [2018-09-18 11:36:07,409 INFO L78 Accepts]: Start accepts. Automaton has 68883 states and 104002 transitions. Word has length 348 [2018-09-18 11:36:07,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:36:07,410 INFO L480 AbstractCegarLoop]: Abstraction has 68883 states and 104002 transitions. [2018-09-18 11:36:07,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:36:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 68883 states and 104002 transitions. [2018-09-18 11:36:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-09-18 11:36:07,496 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:36:07,496 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:36:07,496 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:36:07,497 INFO L82 PathProgramCache]: Analyzing trace with hash -159478754, now seen corresponding path program 1 times [2018-09-18 11:36:07,497 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:36:07,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:07,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:07,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:07,498 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:36:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:07,855 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:36:08,198 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:36:08,198 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:36:08,199 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:36:08,199 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:36:08,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:36:08,200 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:36:08,200 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:36:08,200 INFO L87 Difference]: Start difference. First operand 68883 states and 104002 transitions. Second operand 5 states. [2018-09-18 11:36:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:36:17,193 INFO L93 Difference]: Finished difference Result 157301 states and 256090 transitions. [2018-09-18 11:36:17,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:36:17,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 355 [2018-09-18 11:36:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:36:17,729 INFO L225 Difference]: With dead ends: 157301 [2018-09-18 11:36:17,729 INFO L226 Difference]: Without dead ends: 88424 [2018-09-18 11:36:17,993 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 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 11:36:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88424 states. [2018-09-18 11:36:20,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88424 to 88172. [2018-09-18 11:36:20,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88172 states. [2018-09-18 11:36:21,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88172 states to 88172 states and 127861 transitions. [2018-09-18 11:36:21,054 INFO L78 Accepts]: Start accepts. Automaton has 88172 states and 127861 transitions. Word has length 355 [2018-09-18 11:36:21,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:36:21,054 INFO L480 AbstractCegarLoop]: Abstraction has 88172 states and 127861 transitions. [2018-09-18 11:36:21,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:36:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 88172 states and 127861 transitions. [2018-09-18 11:36:21,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2018-09-18 11:36:21,209 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:36:21,210 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-09-18 11:36:21,210 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:36:21,210 INFO L82 PathProgramCache]: Analyzing trace with hash -101475043, now seen corresponding path program 1 times [2018-09-18 11:36:21,211 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:36:21,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:21,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:21,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:21,212 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:36:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 204 proven. 243 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-09-18 11:36:21,617 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:36:21,617 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 11:36:21,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:21,628 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:36:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:21,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:36:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2018-09-18 11:36:21,956 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:36:23,263 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 204 proven. 243 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-09-18 11:36:23,284 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:36:23,285 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-18 11:36:23,285 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:36:23,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:36:23,286 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:36:23,286 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:36:23,286 INFO L87 Difference]: Start difference. First operand 88172 states and 127861 transitions. Second operand 5 states. [2018-09-18 11:36:33,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:36:33,915 INFO L93 Difference]: Finished difference Result 256077 states and 393843 transitions. [2018-09-18 11:36:33,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:36:33,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 521 [2018-09-18 11:36:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:36:34,629 INFO L225 Difference]: With dead ends: 256077 [2018-09-18 11:36:34,629 INFO L226 Difference]: Without dead ends: 167911 [2018-09-18 11:36:34,859 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:36:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167911 states. [2018-09-18 11:36:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167911 to 167338. [2018-09-18 11:36:39,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167338 states. [2018-09-18 11:36:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167338 states to 167338 states and 234278 transitions. [2018-09-18 11:36:40,081 INFO L78 Accepts]: Start accepts. Automaton has 167338 states and 234278 transitions. Word has length 521 [2018-09-18 11:36:40,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:36:40,082 INFO L480 AbstractCegarLoop]: Abstraction has 167338 states and 234278 transitions. [2018-09-18 11:36:40,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:36:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 167338 states and 234278 transitions. [2018-09-18 11:36:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2018-09-18 11:36:40,231 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:36:40,232 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:36:40,232 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:36:40,233 INFO L82 PathProgramCache]: Analyzing trace with hash -994458281, now seen corresponding path program 1 times [2018-09-18 11:36:40,233 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:36:40,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:40,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:40,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:40,234 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:36:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:41,118 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:36:41,424 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-18 11:36:41,779 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-18 11:36:42,040 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-18 11:36:42,663 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 197 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:36:42,663 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:36:42,663 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 11:36:42,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:42,681 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:36:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:42,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:36:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-18 11:36:44,450 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:36:44,699 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-09-18 11:36:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 102 proven. 144 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:36:46,078 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:36:46,078 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 5] total 16 [2018-09-18 11:36:46,078 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:36:46,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:36:46,079 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:36:46,079 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:36:46,080 INFO L87 Difference]: Start difference. First operand 167338 states and 234278 transitions. Second operand 5 states. [2018-09-18 11:37:04,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:37:04,079 INFO L93 Difference]: Finished difference Result 356856 states and 504315 transitions. [2018-09-18 11:37:04,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 11:37:04,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 550 [2018-09-18 11:37:04,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:37:04,782 INFO L225 Difference]: With dead ends: 356856 [2018-09-18 11:37:04,782 INFO L226 Difference]: Without dead ends: 186182 [2018-09-18 11:37:05,115 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1098 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2018-09-18 11:37:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186182 states. [2018-09-18 11:37:14,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186182 to 185763. [2018-09-18 11:37:14,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185763 states. [2018-09-18 11:37:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185763 states to 185763 states and 259339 transitions. [2018-09-18 11:37:15,451 INFO L78 Accepts]: Start accepts. Automaton has 185763 states and 259339 transitions. Word has length 550 [2018-09-18 11:37:15,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:37:15,452 INFO L480 AbstractCegarLoop]: Abstraction has 185763 states and 259339 transitions. [2018-09-18 11:37:15,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:37:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 185763 states and 259339 transitions. [2018-09-18 11:37:15,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2018-09-18 11:37:15,620 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:37:15,620 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:15,621 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:37:15,621 INFO L82 PathProgramCache]: Analyzing trace with hash 226930262, now seen corresponding path program 1 times [2018-09-18 11:37:15,621 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:37:15,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:15,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:15,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:15,624 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:37:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 14 proven. 145 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-09-18 11:37:17,569 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:37:17,569 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 11:37:17,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:17,577 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:37:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:17,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:37:21,039 WARN L178 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2018-09-18 11:37:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 14 proven. 145 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-09-18 11:37:21,405 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:37:21,627 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-18 11:37:21,736 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-18 11:37:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-09-18 11:37:22,105 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:37:22,106 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-09-18 11:37:22,106 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:37:22,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:37:22,107 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:37:22,107 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-09-18 11:37:22,107 INFO L87 Difference]: Start difference. First operand 185763 states and 259339 transitions. Second operand 3 states. [2018-09-18 11:37:31,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:37:31,351 INFO L93 Difference]: Finished difference Result 400561 states and 573363 transitions. [2018-09-18 11:37:31,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:37:31,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 585 [2018-09-18 11:37:31,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:37:31,999 INFO L225 Difference]: With dead ends: 400561 [2018-09-18 11:37:31,999 INFO L226 Difference]: Without dead ends: 215572 [2018-09-18 11:37:32,388 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1184 GetRequests, 1172 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-09-18 11:37:32,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215572 states. [2018-09-18 11:37:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215572 to 209400. [2018-09-18 11:37:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209400 states. [2018-09-18 11:37:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209400 states to 209400 states and 285669 transitions. [2018-09-18 11:37:38,262 INFO L78 Accepts]: Start accepts. Automaton has 209400 states and 285669 transitions. Word has length 585 [2018-09-18 11:37:38,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:37:38,263 INFO L480 AbstractCegarLoop]: Abstraction has 209400 states and 285669 transitions. [2018-09-18 11:37:38,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:37:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 209400 states and 285669 transitions. [2018-09-18 11:37:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2018-09-18 11:37:38,449 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:37:38,450 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:38,450 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:37:38,451 INFO L82 PathProgramCache]: Analyzing trace with hash 2079679337, now seen corresponding path program 1 times [2018-09-18 11:37:38,451 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:37:38,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:38,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:38,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:38,452 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:37:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:39,472 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 232 proven. 204 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-18 11:37:39,473 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:37:39,473 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 11:37:39,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:39,482 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:37:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:39,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:37:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 456 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-18 11:37:40,709 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:37:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 232 proven. 204 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-18 11:37:41,171 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:37:41,171 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 11:37:41,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:41,187 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:37:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:41,673 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:37:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 456 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-18 11:37:42,338 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:37:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 232 proven. 204 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-18 11:37:43,045 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:37:43,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:37:43,046 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:37:43,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:37:43,048 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:37:43,048 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:37:43,048 INFO L87 Difference]: Start difference. First operand 209400 states and 285669 transitions. Second operand 9 states. Received shutdown request... [2018-09-18 11:37:50,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:37:50,069 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:37:50,075 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:37:50,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:37:50 BoogieIcfgContainer [2018-09-18 11:37:50,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:37:50,079 INFO L168 Benchmark]: Toolchain (without parser) took 209581.36 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -246.6 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-18 11:37:50,080 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:37:50,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2330.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:37:50,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 308.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-09-18 11:37:50,082 INFO L168 Benchmark]: Boogie Preprocessor took 1142.70 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 925.4 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-18 11:37:50,083 INFO L168 Benchmark]: RCFGBuilder took 11625.32 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 650.4 MB). Peak memory consumption was 650.4 MB. Max. memory is 7.1 GB. [2018-09-18 11:37:50,084 INFO L168 Benchmark]: TraceAbstraction took 194167.00 ms. Allocated memory was 2.5 GB in the beginning and 4.4 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 3.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-18 11:37:50,089 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2330.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 308.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1142.70 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 925.4 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11625.32 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 650.4 MB). Peak memory consumption was 650.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194167.00 ms. Allocated memory was 2.5 GB in the beginning and 4.4 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 3.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 165]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 165). Cancelled while BasicCegarLoop was constructing difference of abstraction (209400states) and FLOYD_HOARE automaton (currently 11 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (75578 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 194.0s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 139.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5091 SDtfs, 24601 SDslu, 1793 SDs, 0 SdLazy, 55694 SolverSat, 11123 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 103.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7162 GetRequests, 7057 SyntacticMatches, 19 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209400occurred 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: 28.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 9343 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 7416 NumberOfCodeBlocks, 7416 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 10919 ConstructedInterpolants, 5 QuantifiedInterpolants, 19906380 SizeOfPredicates, 10 NumberOfNonLiveVariables, 5131 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 6037/7839 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/Problem12_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-37-50-103.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-37-50-103.csv Completed graceful shutdown