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_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:34:05,458 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:34:05,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:34:05,476 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:34:05,476 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:34:05,477 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:34:05,478 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:34:05,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:34:05,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:34:05,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:34:05,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:34:05,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:34:05,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:34:05,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:34:05,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:34:05,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:34:05,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:34:05,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:34:05,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:34:05,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:34:05,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:34:05,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:34:05,500 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-14 17:34:05,506 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:34:05,507 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:34:05,508 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:34:05,508 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:34:05,509 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 [2018-09-14 17:34:05,525 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:34:05,525 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:34:05,526 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:34:05,526 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:34:05,526 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:34:05,529 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:34:05,529 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:34:05,529 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:34:05,529 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:34:05,530 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:34:05,530 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:34:05,531 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:34:05,531 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:34:05,531 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:34:05,531 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:34:05,531 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:34:05,531 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:34:05,532 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:34:05,532 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:34:05,532 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:34:05,532 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:34:05,533 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:34:05,533 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:34:05,533 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:34:05,534 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:34:05,534 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:34:05,534 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:34:05,534 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:34:05,534 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:34:05,535 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:34:05,535 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:34:05,535 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:34:05,535 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:34:05,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:34:05,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:34:05,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:34:05,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:34:05,614 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:34:05,615 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label46_true-unreach-call.c [2018-09-14 17:34:05,977 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945502552/cd0bc770f6004439a897e928b12b69d9/FLAG7c90a6ea6 [2018-09-14 17:34:06,507 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:34:06,508 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label46_true-unreach-call.c [2018-09-14 17:34:06,562 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945502552/cd0bc770f6004439a897e928b12b69d9/FLAG7c90a6ea6 [2018-09-14 17:34:06,586 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945502552/cd0bc770f6004439a897e928b12b69d9 [2018-09-14 17:34:06,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:34:06,602 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:34:06,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:34:06,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:34:06,616 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:34:06,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:34:06" (1/1) ... [2018-09-14 17:34:06,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a21620d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:06, skipping insertion in model container [2018-09-14 17:34:06,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:34:06" (1/1) ... [2018-09-14 17:34:06,635 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:34:08,114 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:34:08,136 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:34:09,136 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:34:09,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09 WrapperNode [2018-09-14 17:34:09,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:34:09,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:34:09,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:34:09,464 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:34:09,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:09,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:09,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:34:09,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:34:09,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:34:09,787 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:34:10,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:10,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:10,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:10,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:10,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:10,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:10,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (1/1) ... [2018-09-14 17:34:10,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:34:10,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:34:10,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:34:10,961 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:34:10,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (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 [2018-09-14 17:34:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:34:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:34:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:34:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:34:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:34:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:34:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:34:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:34:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:34:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:34:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:34:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:34:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:34:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:34:22,096 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:34:22,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:34:22 BoogieIcfgContainer [2018-09-14 17:34:22,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:34:22,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:34:22,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:34:22,101 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:34:22,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:34:06" (1/3) ... [2018-09-14 17:34:22,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff9f5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:34:22, skipping insertion in model container [2018-09-14 17:34:22,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:34:09" (2/3) ... [2018-09-14 17:34:22,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff9f5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:34:22, skipping insertion in model container [2018-09-14 17:34:22,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:34:22" (3/3) ... [2018-09-14 17:34:22,105 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label46_true-unreach-call.c [2018-09-14 17:34:22,115 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:34:22,125 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:34:22,187 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:34:22,187 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:34:22,188 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:34:22,188 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:34:22,188 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:34:22,188 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:34:22,188 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:34:22,188 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:34:22,188 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:34:22,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-14 17:34:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-09-14 17:34:22,244 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:22,245 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:34:22,246 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:22,250 INFO L82 PathProgramCache]: Analyzing trace with hash -935987813, now seen corresponding path program 1 times [2018-09-14 17:34:22,252 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:22,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:22,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:22,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:22,305 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:22,841 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:34:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:22,955 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:34:22,955 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:34:22,956 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:22,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:34:22,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:34:22,979 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:34:22,981 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-14 17:34:32,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:32,976 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-09-14 17:34:32,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:34:32,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2018-09-14 17:34:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:33,011 INFO L225 Difference]: With dead ends: 3101 [2018-09-14 17:34:33,011 INFO L226 Difference]: Without dead ends: 1979 [2018-09-14 17:34:33,024 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:34:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-09-14 17:34:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-09-14 17:34:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-09-14 17:34:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-09-14 17:34:33,212 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 73 [2018-09-14 17:34:33,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:33,213 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-09-14 17:34:33,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:34:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-09-14 17:34:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-14 17:34:33,222 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:33,222 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:34:33,223 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:33,223 INFO L82 PathProgramCache]: Analyzing trace with hash 400656362, now seen corresponding path program 1 times [2018-09-14 17:34:33,223 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:33,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:33,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:33,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:33,225 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:33,521 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:34:33,521 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:34:33,521 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:33,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:34:33,523 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:34:33,524 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:34:33,525 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-09-14 17:34:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:49,943 INFO L93 Difference]: Finished difference Result 5717 states and 10466 transitions. [2018-09-14 17:34:49,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:34:49,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2018-09-14 17:34:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:49,974 INFO L225 Difference]: With dead ends: 5717 [2018-09-14 17:34:49,974 INFO L226 Difference]: Without dead ends: 3764 [2018-09-14 17:34:49,982 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:34:49,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2018-09-14 17:34:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3679. [2018-09-14 17:34:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3679 states. [2018-09-14 17:34:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 6042 transitions. [2018-09-14 17:34:50,132 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 6042 transitions. Word has length 149 [2018-09-14 17:34:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:50,133 INFO L480 AbstractCegarLoop]: Abstraction has 3679 states and 6042 transitions. [2018-09-14 17:34:50,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:34:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 6042 transitions. [2018-09-14 17:34:50,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-09-14 17:34:50,142 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:50,142 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:34:50,145 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:50,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1264699457, now seen corresponding path program 1 times [2018-09-14 17:34:50,145 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:50,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:50,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:50,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:50,147 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:50,458 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:34:50,458 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:34:50,458 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:50,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:34:50,459 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:34:50,459 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:34:50,460 INFO L87 Difference]: Start difference. First operand 3679 states and 6042 transitions. Second operand 6 states. [2018-09-14 17:35:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:00,553 INFO L93 Difference]: Finished difference Result 10857 states and 18392 transitions. [2018-09-14 17:35:00,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:35:00,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-09-14 17:35:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:00,595 INFO L225 Difference]: With dead ends: 10857 [2018-09-14 17:35:00,595 INFO L226 Difference]: Without dead ends: 7184 [2018-09-14 17:35:00,610 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 [2018-09-14 17:35:00,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2018-09-14 17:35:00,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 7133. [2018-09-14 17:35:00,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7133 states. [2018-09-14 17:35:00,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7133 states to 7133 states and 10914 transitions. [2018-09-14 17:35:00,796 INFO L78 Accepts]: Start accepts. Automaton has 7133 states and 10914 transitions. Word has length 150 [2018-09-14 17:35:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:00,797 INFO L480 AbstractCegarLoop]: Abstraction has 7133 states and 10914 transitions. [2018-09-14 17:35:00,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:35:00,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7133 states and 10914 transitions. [2018-09-14 17:35:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-14 17:35:00,802 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:00,803 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:35:00,803 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:00,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1422847528, now seen corresponding path program 1 times [2018-09-14 17:35:00,803 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:00,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:00,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:00,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:00,808 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:35:01,029 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:35:01,030 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:35:01,030 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:01,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:35:01,031 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:35:01,031 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:35:01,031 INFO L87 Difference]: Start difference. First operand 7133 states and 10914 transitions. Second operand 3 states. [2018-09-14 17:35:08,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:08,073 INFO L93 Difference]: Finished difference Result 20919 states and 33362 transitions. [2018-09-14 17:35:08,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:35:08,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2018-09-14 17:35:08,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:08,160 INFO L225 Difference]: With dead ends: 20919 [2018-09-14 17:35:08,160 INFO L226 Difference]: Without dead ends: 13792 [2018-09-14 17:35:08,204 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:35:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13792 states. [2018-09-14 17:35:08,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13792 to 13791. [2018-09-14 17:35:08,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13791 states. [2018-09-14 17:35:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13791 states to 13791 states and 20334 transitions. [2018-09-14 17:35:08,549 INFO L78 Accepts]: Start accepts. Automaton has 13791 states and 20334 transitions. Word has length 174 [2018-09-14 17:35:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:08,550 INFO L480 AbstractCegarLoop]: Abstraction has 13791 states and 20334 transitions. [2018-09-14 17:35:08,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:35:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 13791 states and 20334 transitions. [2018-09-14 17:35:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-09-14 17:35:08,560 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:08,560 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:35:08,560 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:08,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1589052739, now seen corresponding path program 1 times [2018-09-14 17:35:08,561 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:08,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:08,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:08,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:08,562 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:08,816 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:35:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 132 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:35:09,233 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:09,234 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 [2018-09-14 17:35:09,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:09,257 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:09,382 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 17:35:10,184 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 132 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:35:10,611 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:35:10,612 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-14 17:35:10,612 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:10,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:35:10,613 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:35:10,613 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:35:10,613 INFO L87 Difference]: Start difference. First operand 13791 states and 20334 transitions. Second operand 5 states. [2018-09-14 17:35:25,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:25,059 INFO L93 Difference]: Finished difference Result 37083 states and 57067 transitions. [2018-09-14 17:35:25,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:35:25,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 227 [2018-09-14 17:35:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:25,188 INFO L225 Difference]: With dead ends: 37083 [2018-09-14 17:35:25,188 INFO L226 Difference]: Without dead ends: 23298 [2018-09-14 17:35:25,261 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:35:25,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23298 states. [2018-09-14 17:35:25,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23298 to 23224. [2018-09-14 17:35:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23224 states. [2018-09-14 17:35:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23224 states to 23224 states and 33156 transitions. [2018-09-14 17:35:25,876 INFO L78 Accepts]: Start accepts. Automaton has 23224 states and 33156 transitions. Word has length 227 [2018-09-14 17:35:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:25,876 INFO L480 AbstractCegarLoop]: Abstraction has 23224 states and 33156 transitions. [2018-09-14 17:35:25,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:35:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 23224 states and 33156 transitions. [2018-09-14 17:35:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-09-14 17:35:25,901 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:25,901 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-09-14 17:35:25,902 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:25,902 INFO L82 PathProgramCache]: Analyzing trace with hash -600805072, now seen corresponding path program 1 times [2018-09-14 17:35:25,902 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:25,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:25,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:25,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:25,904 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:26,532 WARN L178 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2018-09-14 17:35:26,884 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-14 17:35:27,199 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 198 proven. 144 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-14 17:35:27,199 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:27,200 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 [2018-09-14 17:35:27,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:27,214 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:27,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:28,226 WARN L178 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-09-14 17:35:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-09-14 17:35:28,353 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:28,649 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-09-14 17:35:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 198 proven. 144 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-14 17:35:29,527 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:35:29,527 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:35:29,528 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:29,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:35:29,529 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:35:29,529 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:35:29,529 INFO L87 Difference]: Start difference. First operand 23224 states and 33156 transitions. Second operand 5 states. [2018-09-14 17:35:55,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:55,518 INFO L93 Difference]: Finished difference Result 50796 states and 74552 transitions. [2018-09-14 17:35:55,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:35:55,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 321 [2018-09-14 17:35:55,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:55,639 INFO L225 Difference]: With dead ends: 50796 [2018-09-14 17:35:55,639 INFO L226 Difference]: Without dead ends: 27578 [2018-09-14 17:35:55,699 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 637 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:35:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27578 states. [2018-09-14 17:35:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27578 to 27192. [2018-09-14 17:35:56,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27192 states. [2018-09-14 17:35:56,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 38981 transitions. [2018-09-14 17:35:56,323 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 38981 transitions. Word has length 321 [2018-09-14 17:35:56,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:56,323 INFO L480 AbstractCegarLoop]: Abstraction has 27192 states and 38981 transitions. [2018-09-14 17:35:56,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:35:56,324 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 38981 transitions. [2018-09-14 17:35:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-09-14 17:35:56,349 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:56,349 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-09-14 17:35:56,350 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1964006666, now seen corresponding path program 1 times [2018-09-14 17:35:56,350 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:56,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:56,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:56,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:56,352 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 279 proven. 75 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:35:57,016 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:57,016 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 [2018-09-14 17:35:57,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:57,030 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:57,132 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 17:35:57,783 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 279 proven. 75 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:35:57,970 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:57,970 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 [2018-09-14 17:35:57,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:57,986 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:58,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 17:35:58,404 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 279 proven. 75 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:35:58,534 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:35:58,534 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-09-14 17:35:58,534 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:35:58,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:35:58,535 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:35:58,536 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:35:58,536 INFO L87 Difference]: Start difference. First operand 27192 states and 38981 transitions. Second operand 9 states. [2018-09-14 17:36:21,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:21,222 INFO L93 Difference]: Finished difference Result 64411 states and 101969 transitions. [2018-09-14 17:36:21,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-14 17:36:21,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 328 [2018-09-14 17:36:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:21,377 INFO L225 Difference]: With dead ends: 64411 [2018-09-14 17:36:21,378 INFO L226 Difference]: Without dead ends: 38030 [2018-09-14 17:36:21,479 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1309 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2018-09-14 17:36:21,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38030 states. [2018-09-14 17:36:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38030 to 37005. [2018-09-14 17:36:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37005 states. [2018-09-14 17:36:22,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37005 states to 37005 states and 51461 transitions. [2018-09-14 17:36:22,368 INFO L78 Accepts]: Start accepts. Automaton has 37005 states and 51461 transitions. Word has length 328 [2018-09-14 17:36:22,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:22,369 INFO L480 AbstractCegarLoop]: Abstraction has 37005 states and 51461 transitions. [2018-09-14 17:36:22,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:36:22,369 INFO L276 IsEmpty]: Start isEmpty. Operand 37005 states and 51461 transitions. [2018-09-14 17:36:22,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2018-09-14 17:36:22,397 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:22,397 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-14 17:36:22,398 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:22,398 INFO L82 PathProgramCache]: Analyzing trace with hash -538800365, now seen corresponding path program 1 times [2018-09-14 17:36:22,398 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:22,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:22,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:22,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:22,400 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:22,739 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-09-14 17:36:22,740 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:36:22,740 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:36:22,740 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:36:22,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:36:22,741 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:36:22,741 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:36:22,742 INFO L87 Difference]: Start difference. First operand 37005 states and 51461 transitions. Second operand 4 states. [2018-09-14 17:36:28,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:28,566 INFO L93 Difference]: Finished difference Result 73178 states and 102233 transitions. [2018-09-14 17:36:28,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:36:28,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 371 [2018-09-14 17:36:28,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:28,695 INFO L225 Difference]: With dead ends: 73178 [2018-09-14 17:36:28,696 INFO L226 Difference]: Without dead ends: 36984 [2018-09-14 17:36:28,798 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:36:28,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36984 states. [2018-09-14 17:36:29,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36984 to 36975. [2018-09-14 17:36:29,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36975 states. [2018-09-14 17:36:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36975 states to 36975 states and 51364 transitions. [2018-09-14 17:36:29,917 INFO L78 Accepts]: Start accepts. Automaton has 36975 states and 51364 transitions. Word has length 371 [2018-09-14 17:36:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:29,918 INFO L480 AbstractCegarLoop]: Abstraction has 36975 states and 51364 transitions. [2018-09-14 17:36:29,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:36:29,919 INFO L276 IsEmpty]: Start isEmpty. Operand 36975 states and 51364 transitions. [2018-09-14 17:36:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-09-14 17:36:29,945 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:29,945 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:36:29,946 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:29,946 INFO L82 PathProgramCache]: Analyzing trace with hash -722216489, now seen corresponding path program 1 times [2018-09-14 17:36:29,946 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:29,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:29,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:29,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:29,947 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:30,328 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:36:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 133 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:36:30,469 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:30,469 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 [2018-09-14 17:36:30,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:30,478 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:30,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:36:31,082 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:36:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:36:32,207 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:32,208 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 [2018-09-14 17:36:32,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:32,241 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:32,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:36:32,946 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:36:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:36:33,238 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-14 17:36:33,238 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-09-14 17:36:33,238 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:36:33,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:36:33,239 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:36:33,239 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:36:33,240 INFO L87 Difference]: Start difference. First operand 36975 states and 51364 transitions. Second operand 5 states. [2018-09-14 17:36:42,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:42,551 INFO L93 Difference]: Finished difference Result 81370 states and 115363 transitions. [2018-09-14 17:36:42,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:36:42,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 379 [2018-09-14 17:36:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:42,728 INFO L225 Difference]: With dead ends: 81370 [2018-09-14 17:36:42,729 INFO L226 Difference]: Without dead ends: 45206 [2018-09-14 17:36:42,851 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1524 GetRequests, 1504 SyntacticMatches, 9 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:36:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45206 states. [2018-09-14 17:36:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45206 to 44960. [2018-09-14 17:36:43,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44960 states. [2018-09-14 17:36:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44960 states to 44960 states and 59173 transitions. [2018-09-14 17:36:43,764 INFO L78 Accepts]: Start accepts. Automaton has 44960 states and 59173 transitions. Word has length 379 [2018-09-14 17:36:43,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:43,765 INFO L480 AbstractCegarLoop]: Abstraction has 44960 states and 59173 transitions. [2018-09-14 17:36:43,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:36:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 44960 states and 59173 transitions. [2018-09-14 17:36:43,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-09-14 17:36:43,790 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:43,790 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:36:43,790 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:43,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1668392637, now seen corresponding path program 1 times [2018-09-14 17:36:43,791 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:43,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:43,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:43,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:43,792 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 111 proven. 557 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:36:44,928 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:44,928 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:36:45,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:45,380 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:45,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 530 proven. 2 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-09-14 17:36:45,885 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:36:46,811 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:36:47,511 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 275 proven. 381 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-14 17:36:47,531 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:47,532 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:36:47,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:47,550 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:47,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 530 proven. 2 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-09-14 17:36:48,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:36:48,770 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:36:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 275 proven. 381 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-14 17:36:50,314 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:36:50,314 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8, 8, 8] total 33 [2018-09-14 17:36:50,314 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:36:50,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-14 17:36:50,318 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-14 17:36:50,318 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=903, Unknown=0, NotChecked=0, Total=1056 [2018-09-14 17:36:50,318 INFO L87 Difference]: Start difference. First operand 44960 states and 59173 transitions. Second operand 21 states. [2018-09-14 17:37:34,481 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-09-14 17:37:39,532 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2018-09-14 17:37:45,913 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-14 17:37:58,342 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 Received shutdown request... [2018-09-14 17:38:00,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2018-09-14 17:38:00,290 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:38:00,295 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:38:00,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:38:00 BoogieIcfgContainer [2018-09-14 17:38:00,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:38:00,296 INFO L168 Benchmark]: Toolchain (without parser) took 233696.86 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 434.2 MB. Max. memory is 7.1 GB. [2018-09-14 17:38:00,297 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. [2018-09-14 17:38:00,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2859.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:38:00,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 323.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:38:00,299 INFO L168 Benchmark]: Boogie Preprocessor took 1173.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.2 MB. Max. memory is 7.1 GB. [2018-09-14 17:38:00,300 INFO L168 Benchmark]: RCFGBuilder took 11136.73 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 157.8 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 213.6 kB). Peak memory consumption was 743.5 MB. Max. memory is 7.1 GB. [2018-09-14 17:38:00,301 INFO L168 Benchmark]: TraceAbstraction took 218197.21 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 3.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 211.6 MB. Max. memory is 7.1 GB. [2018-09-14 17:38:00,306 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 2859.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 323.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1173.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11136.73 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 157.8 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 213.6 kB). Peak memory consumption was 743.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218197.21 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 3.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 211.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 210]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 210). Cancelled while BasicCegarLoop was constructing difference of abstraction (44960states) and FLOYD_HOARE automaton (currently 149 states, 21 states before enhancement), while ReachableStatesComputation was computing reachable states (51597 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 218.1s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 193.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4605 SDtfs, 58662 SDslu, 6343 SDs, 0 SdLazy, 96769 SolverSat, 14994 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 158.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5848 GetRequests, 5581 SyntacticMatches, 28 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11382 ImplicationChecksByTransitivity, 17.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44960occurred in iteration=9, 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: 5.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1897 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 16.0s InterpolantComputationTime, 5400 NumberOfCodeBlocks, 5400 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 8180 ConstructedInterpolants, 222 QuantifiedInterpolants, 13337377 SizeOfPredicates, 10 NumberOfNonLiveVariables, 4868 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 7732/9743 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_label46_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-38-00-320.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label46_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-38-00-320.csv Completed graceful shutdown