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_label29_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:32:17,008 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:32:17,010 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:32:17,028 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:32:17,029 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:32:17,030 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:32:17,032 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:32:17,034 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:32:17,037 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:32:17,039 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:32:17,041 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:32:17,042 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:32:17,043 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:32:17,044 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:32:17,047 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:32:17,055 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:32:17,056 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:32:17,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:32:17,062 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:32:17,066 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:32:17,068 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:32:17,069 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:32:17,073 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:32:17,083 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:32:17,083 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:32:17,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:32:17,086 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:32:17,087 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 11:32:17,113 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:32:17,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:32:17,114 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:32:17,114 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:32:17,114 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:32:17,114 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:32:17,115 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:32:17,115 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:32:17,115 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:32:17,115 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:32:17,115 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:32:17,116 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:32:17,116 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:32:17,117 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:32:17,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:32:17,117 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:32:17,117 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:32:17,117 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:32:17,118 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:32:17,118 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:32:17,118 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:32:17,118 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:32:17,118 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:32:17,119 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:32:17,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:32:17,121 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:32:17,121 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:32:17,121 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:32:17,121 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:32:17,122 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:32:17,122 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:32:17,122 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:32:17,122 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:32:17,122 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:32:17,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:32:17,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:32:17,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:32:17,193 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:32:17,194 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:32:17,194 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label29_true-unreach-call.c [2018-09-18 11:32:17,540 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29bd3646a/17231c47f5984ccab6415efd9031d1ba/FLAGca4e82221 [2018-09-18 11:32:18,062 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:32:18,063 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label29_true-unreach-call.c [2018-09-18 11:32:18,094 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29bd3646a/17231c47f5984ccab6415efd9031d1ba/FLAGca4e82221 [2018-09-18 11:32:18,111 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29bd3646a/17231c47f5984ccab6415efd9031d1ba [2018-09-18 11:32:18,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:32:18,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:32:18,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:32:18,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:32:18,134 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:32:18,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:32:18" (1/1) ... [2018-09-18 11:32:18,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ded99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:18, skipping insertion in model container [2018-09-18 11:32:18,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:32:18" (1/1) ... [2018-09-18 11:32:18,151 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:32:19,419 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:32:19,446 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:32:20,028 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:32:20,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20 WrapperNode [2018-09-18 11:32:20,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:32:20,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:32:20,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:32:20,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:32:20,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:20,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:20,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:32:20,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:32:20,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:32:20,532 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:32:21,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:21,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:21,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:21,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:21,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:21,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:21,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (1/1) ... [2018-09-18 11:32:21,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:32:21,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:32:21,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:32:21,428 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:32:21,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (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 11:32:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:32:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:32:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:32:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:32:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:32:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:32:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:32:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:32:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:32:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:32:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:32:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:32:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:32:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:32:32,520 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:32:32,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:32:32 BoogieIcfgContainer [2018-09-18 11:32:32,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:32:32,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:32:32,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:32:32,525 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:32:32,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:32:18" (1/3) ... [2018-09-18 11:32:32,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64613151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:32:32, skipping insertion in model container [2018-09-18 11:32:32,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:32:20" (2/3) ... [2018-09-18 11:32:32,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64613151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:32:32, skipping insertion in model container [2018-09-18 11:32:32,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:32:32" (3/3) ... [2018-09-18 11:32:32,529 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label29_true-unreach-call.c [2018-09-18 11:32:32,539 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:32:32,549 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:32:32,612 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:32:32,613 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:32:32,613 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:32:32,613 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:32:32,613 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:32:32,613 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:32:32,613 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:32:32,614 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:32:32,614 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:32:32,662 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-18 11:32:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-18 11:32:32,676 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:32:32,677 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] [2018-09-18 11:32:32,678 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:32:32,684 INFO L82 PathProgramCache]: Analyzing trace with hash -648066108, now seen corresponding path program 1 times [2018-09-18 11:32:32,687 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:32:32,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:32,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:32,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:32,747 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:32:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:33,290 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-09-18 11:32:33,311 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 11:32:33,314 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:32:33,314 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:32:33,315 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:32:33,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:32:33,338 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:32:33,339 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:32:33,342 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-09-18 11:32:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:32:46,409 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-09-18 11:32:46,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:32:46,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-09-18 11:32:46,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:32:46,472 INFO L225 Difference]: With dead ends: 3234 [2018-09-18 11:32:46,472 INFO L226 Difference]: Without dead ends: 2388 [2018-09-18 11:32:46,482 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 11:32:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-09-18 11:32:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-09-18 11:32:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-09-18 11:32:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3845 transitions. [2018-09-18 11:32:46,677 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3845 transitions. Word has length 62 [2018-09-18 11:32:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:32:46,678 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 3845 transitions. [2018-09-18 11:32:46,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:32:46,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3845 transitions. [2018-09-18 11:32:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-18 11:32:46,688 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:32:46,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:46,689 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:32:46,689 INFO L82 PathProgramCache]: Analyzing trace with hash -267235377, now seen corresponding path program 1 times [2018-09-18 11:32:46,689 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:32:46,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:46,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:46,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:46,692 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:32:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:32:46,975 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:32:46,975 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:32:46,975 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:32:46,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:32:46,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:32:46,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:32:46,978 INFO L87 Difference]: Start difference. First operand 2388 states and 3845 transitions. Second operand 5 states. [2018-09-18 11:33:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:33:02,711 INFO L93 Difference]: Finished difference Result 7257 states and 11779 transitions. [2018-09-18 11:33:02,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:33:02,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-09-18 11:33:02,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:33:02,762 INFO L225 Difference]: With dead ends: 7257 [2018-09-18 11:33:02,762 INFO L226 Difference]: Without dead ends: 4875 [2018-09-18 11:33:02,771 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:33:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4875 states. [2018-09-18 11:33:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4875 to 4829. [2018-09-18 11:33:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4829 states. [2018-09-18 11:33:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 7152 transitions. [2018-09-18 11:33:03,029 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 7152 transitions. Word has length 143 [2018-09-18 11:33:03,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:33:03,030 INFO L480 AbstractCegarLoop]: Abstraction has 4829 states and 7152 transitions. [2018-09-18 11:33:03,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:33:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 7152 transitions. [2018-09-18 11:33:03,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-18 11:33:03,036 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:33:03,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:03,037 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:33:03,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1673617562, now seen corresponding path program 1 times [2018-09-18 11:33:03,038 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:33:03,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:03,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:33:03,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:03,039 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:33:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:33:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:33:03,286 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:33:03,286 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:33:03,286 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:33:03,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:33:03,287 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:33:03,287 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:33:03,288 INFO L87 Difference]: Start difference. First operand 4829 states and 7152 transitions. Second operand 6 states. [2018-09-18 11:33:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:33:11,557 INFO L93 Difference]: Finished difference Result 14640 states and 22370 transitions. [2018-09-18 11:33:11,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:33:11,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-09-18 11:33:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:33:11,614 INFO L225 Difference]: With dead ends: 14640 [2018-09-18 11:33:11,617 INFO L226 Difference]: Without dead ends: 9817 [2018-09-18 11:33:11,632 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 11:33:11,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2018-09-18 11:33:11,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 9687. [2018-09-18 11:33:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9687 states. [2018-09-18 11:33:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9687 states to 9687 states and 14172 transitions. [2018-09-18 11:33:11,882 INFO L78 Accepts]: Start accepts. Automaton has 9687 states and 14172 transitions. Word has length 176 [2018-09-18 11:33:11,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:33:11,882 INFO L480 AbstractCegarLoop]: Abstraction has 9687 states and 14172 transitions. [2018-09-18 11:33:11,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:33:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand 9687 states and 14172 transitions. [2018-09-18 11:33:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-09-18 11:33:11,886 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:33:11,886 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:11,886 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:33:11,887 INFO L82 PathProgramCache]: Analyzing trace with hash 924991159, now seen corresponding path program 1 times [2018-09-18 11:33:11,887 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:33:11,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:11,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:33:11,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:11,888 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:33:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:33:12,202 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:33:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:33:12,383 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:33:12,383 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:33:12,383 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:33:12,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:33:12,384 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:33:12,384 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:33:12,384 INFO L87 Difference]: Start difference. First operand 9687 states and 14172 transitions. Second operand 6 states. [2018-09-18 11:33:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:33:23,923 INFO L93 Difference]: Finished difference Result 33017 states and 50581 transitions. [2018-09-18 11:33:23,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:33:23,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-09-18 11:33:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:33:24,028 INFO L225 Difference]: With dead ends: 33017 [2018-09-18 11:33:24,028 INFO L226 Difference]: Without dead ends: 23336 [2018-09-18 11:33:24,076 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:33:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23336 states. [2018-09-18 11:33:24,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23336 to 23223. [2018-09-18 11:33:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23223 states. [2018-09-18 11:33:24,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23223 states to 23223 states and 32833 transitions. [2018-09-18 11:33:24,616 INFO L78 Accepts]: Start accepts. Automaton has 23223 states and 32833 transitions. Word has length 187 [2018-09-18 11:33:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:33:24,617 INFO L480 AbstractCegarLoop]: Abstraction has 23223 states and 32833 transitions. [2018-09-18 11:33:24,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:33:24,617 INFO L276 IsEmpty]: Start isEmpty. Operand 23223 states and 32833 transitions. [2018-09-18 11:33:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-18 11:33:24,622 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:33:24,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:24,623 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:33:24,623 INFO L82 PathProgramCache]: Analyzing trace with hash 862970119, now seen corresponding path program 1 times [2018-09-18 11:33:24,623 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:33:24,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:24,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:33:24,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:24,625 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:33:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:33:24,913 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:33:24,913 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:33:24,913 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:33:24,914 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:33:24,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:33:24,915 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:33:24,915 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:33:24,915 INFO L87 Difference]: Start difference. First operand 23223 states and 32833 transitions. Second operand 4 states. [2018-09-18 11:33:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:33:34,327 INFO L93 Difference]: Finished difference Result 55863 states and 80527 transitions. [2018-09-18 11:33:34,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:33:34,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2018-09-18 11:33:34,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:33:34,445 INFO L225 Difference]: With dead ends: 55863 [2018-09-18 11:33:34,445 INFO L226 Difference]: Without dead ends: 32646 [2018-09-18 11:33:34,502 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 11:33:34,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32646 states. [2018-09-18 11:33:35,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32646 to 32644. [2018-09-18 11:33:35,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32644 states. [2018-09-18 11:33:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32644 states to 32644 states and 42114 transitions. [2018-09-18 11:33:35,102 INFO L78 Accepts]: Start accepts. Automaton has 32644 states and 42114 transitions. Word has length 211 [2018-09-18 11:33:35,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:33:35,103 INFO L480 AbstractCegarLoop]: Abstraction has 32644 states and 42114 transitions. [2018-09-18 11:33:35,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:33:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 32644 states and 42114 transitions. [2018-09-18 11:33:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-18 11:33:35,109 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:33:35,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:35,109 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:33:35,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1084674450, now seen corresponding path program 1 times [2018-09-18 11:33:35,110 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:33:35,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:35,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:33:35,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:35,111 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:33:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:33:35,406 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:33:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-18 11:33:35,666 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:33:35,666 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 11:33:35,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:33:35,684 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:33:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:33:35,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:33:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:33:35,997 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:33:36,382 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:33:36,415 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:33:36,416 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2018-09-18 11:33:36,416 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:33:36,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:33:36,418 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:33:36,418 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:33:36,419 INFO L87 Difference]: Start difference. First operand 32644 states and 42114 transitions. Second operand 3 states. [2018-09-18 11:33:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:33:44,823 INFO L93 Difference]: Finished difference Result 83826 states and 109863 transitions. [2018-09-18 11:33:44,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:33:44,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-09-18 11:33:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:33:45,042 INFO L225 Difference]: With dead ends: 83826 [2018-09-18 11:33:45,042 INFO L226 Difference]: Without dead ends: 51188 [2018-09-18 11:33:45,123 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 422 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:33:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51188 states. [2018-09-18 11:33:46,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51188 to 51188. [2018-09-18 11:33:46,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51188 states. [2018-09-18 11:33:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51188 states to 51188 states and 65097 transitions. [2018-09-18 11:33:46,291 INFO L78 Accepts]: Start accepts. Automaton has 51188 states and 65097 transitions. Word has length 212 [2018-09-18 11:33:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:33:46,292 INFO L480 AbstractCegarLoop]: Abstraction has 51188 states and 65097 transitions. [2018-09-18 11:33:46,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:33:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 51188 states and 65097 transitions. [2018-09-18 11:33:46,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-09-18 11:33:46,342 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:33:46,343 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:33:46,343 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:33:46,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1996931741, now seen corresponding path program 1 times [2018-09-18 11:33:46,350 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:33:46,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:46,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:33:46,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:33:46,352 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:33:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:33:46,820 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-09-18 11:33:46,821 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:33:46,821 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:33:46,821 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:33:46,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:33:46,822 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:33:46,822 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:33:46,822 INFO L87 Difference]: Start difference. First operand 51188 states and 65097 transitions. Second operand 4 states. [2018-09-18 11:34:00,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:34:00,262 INFO L93 Difference]: Finished difference Result 190518 states and 256029 transitions. [2018-09-18 11:34:00,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:34:00,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 389 [2018-09-18 11:34:00,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:34:00,814 INFO L225 Difference]: With dead ends: 190518 [2018-09-18 11:34:00,814 INFO L226 Difference]: Without dead ends: 139336 [2018-09-18 11:34:00,989 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 11:34:01,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139336 states. [2018-09-18 11:34:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139336 to 139336. [2018-09-18 11:34:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139336 states. [2018-09-18 11:34:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139336 states to 139336 states and 181626 transitions. [2018-09-18 11:34:04,117 INFO L78 Accepts]: Start accepts. Automaton has 139336 states and 181626 transitions. Word has length 389 [2018-09-18 11:34:04,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:34:04,118 INFO L480 AbstractCegarLoop]: Abstraction has 139336 states and 181626 transitions. [2018-09-18 11:34:04,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:34:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 139336 states and 181626 transitions. [2018-09-18 11:34:04,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2018-09-18 11:34:04,314 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:34:04,314 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:34:04,315 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:34:04,315 INFO L82 PathProgramCache]: Analyzing trace with hash -243323280, now seen corresponding path program 1 times [2018-09-18 11:34:04,315 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:34:04,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:04,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:04,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:04,317 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:34:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:04,828 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:34:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-18 11:34:05,036 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:34:05,036 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 11:34:05,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:05,044 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:34:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:05,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:34:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 258 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:34:06,353 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:34:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 258 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:34:06,997 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:34:06,997 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:34:07,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:07,016 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:34:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:07,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:34:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-18 11:34:07,617 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:34:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-18 11:34:08,944 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 11:34:08,944 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 15 [2018-09-18 11:34:08,945 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:34:08,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:34:08,947 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:34:08,947 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:34:08,948 INFO L87 Difference]: Start difference. First operand 139336 states and 181626 transitions. Second operand 5 states. [2018-09-18 11:34:16,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:34:16,688 INFO L93 Difference]: Finished difference Result 314649 states and 415489 transitions. [2018-09-18 11:34:16,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:34:16,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 549 [2018-09-18 11:34:16,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:34:17,480 INFO L225 Difference]: With dead ends: 314649 [2018-09-18 11:34:17,480 INFO L226 Difference]: Without dead ends: 175319 [2018-09-18 11:34:18,867 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2206 GetRequests, 2187 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:34:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175319 states. [2018-09-18 11:34:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175319 to 175319. [2018-09-18 11:34:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175319 states. [2018-09-18 11:34:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175319 states to 175319 states and 216633 transitions. [2018-09-18 11:34:21,523 INFO L78 Accepts]: Start accepts. Automaton has 175319 states and 216633 transitions. Word has length 549 [2018-09-18 11:34:21,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:34:21,524 INFO L480 AbstractCegarLoop]: Abstraction has 175319 states and 216633 transitions. [2018-09-18 11:34:21,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:34:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 175319 states and 216633 transitions. [2018-09-18 11:34:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2018-09-18 11:34:21,727 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:34:21,728 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:21,729 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:34:21,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1154856610, now seen corresponding path program 1 times [2018-09-18 11:34:21,729 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:34:21,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:21,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:21,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:21,730 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:34:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 429 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:34:24,177 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:34:24,177 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 11:34:24,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:24,189 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:34:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:24,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:34:24,921 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-18 11:34:24,922 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:34:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-18 11:34:25,902 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:34:25,903 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:34:25,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:25,921 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:34:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:26,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:34:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 167 proven. 4 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-09-18 11:34:26,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:34:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-09-18 11:34:28,188 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 11:34:28,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 5, 5, 5] total 18 [2018-09-18 11:34:28,188 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:34:28,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:34:28,189 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:34:28,189 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:34:28,190 INFO L87 Difference]: Start difference. First operand 175319 states and 216633 transitions. Second operand 5 states. [2018-09-18 11:34:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:34:36,742 INFO L93 Difference]: Finished difference Result 359595 states and 448086 transitions. [2018-09-18 11:34:36,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:34:36,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 667 [2018-09-18 11:34:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:34:37,360 INFO L225 Difference]: With dead ends: 359595 [2018-09-18 11:34:37,360 INFO L226 Difference]: Without dead ends: 185050 [2018-09-18 11:34:38,095 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2682 GetRequests, 2653 SyntacticMatches, 12 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2018-09-18 11:34:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185050 states. [2018-09-18 11:34:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185050 to 185038. [2018-09-18 11:34:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185038 states. [2018-09-18 11:34:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185038 states to 185038 states and 224976 transitions. [2018-09-18 11:34:41,319 INFO L78 Accepts]: Start accepts. Automaton has 185038 states and 224976 transitions. Word has length 667 [2018-09-18 11:34:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:34:41,321 INFO L480 AbstractCegarLoop]: Abstraction has 185038 states and 224976 transitions. [2018-09-18 11:34:41,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:34:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 185038 states and 224976 transitions. [2018-09-18 11:34:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2018-09-18 11:34:41,449 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:34:41,449 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:41,450 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:34:41,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1722290603, now seen corresponding path program 1 times [2018-09-18 11:34:41,450 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:34:41,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:41,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:41,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:41,452 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:34:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:41,905 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:34:42,768 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 171 proven. 362 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:34:42,768 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:34:42,769 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:34:42,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:42,784 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:34:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:42,986 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:34:43,270 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-09-18 11:34:43,270 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:34:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 318 proven. 154 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-18 11:34:48,402 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:34:48,402 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:34:48,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:48,419 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:34:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:48,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:34:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 415 proven. 2 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2018-09-18 11:34:49,213 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:34:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 173 proven. 295 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-09-18 11:34:49,731 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:34:49,732 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:34:49,732 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:34:49,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:34:49,734 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:34:49,734 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:34:49,734 INFO L87 Difference]: Start difference. First operand 185038 states and 224976 transitions. Second operand 9 states. [2018-09-18 11:35:01,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:01,584 INFO L93 Difference]: Finished difference Result 405859 states and 496158 transitions. [2018-09-18 11:35:01,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 11:35:01,584 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 704 [2018-09-18 11:35:01,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:02,172 INFO L225 Difference]: With dead ends: 405859 [2018-09-18 11:35:02,173 INFO L226 Difference]: Without dead ends: 221595 [2018-09-18 11:35:02,385 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2837 GetRequests, 2811 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2018-09-18 11:35:02,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221595 states. [2018-09-18 11:35:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221595 to 221471. [2018-09-18 11:35:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221471 states. [2018-09-18 11:35:05,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221471 states to 221471 states and 254226 transitions. [2018-09-18 11:35:05,687 INFO L78 Accepts]: Start accepts. Automaton has 221471 states and 254226 transitions. Word has length 704 [2018-09-18 11:35:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:05,687 INFO L480 AbstractCegarLoop]: Abstraction has 221471 states and 254226 transitions. [2018-09-18 11:35:05,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:35:05,687 INFO L276 IsEmpty]: Start isEmpty. Operand 221471 states and 254226 transitions. [2018-09-18 11:35:05,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2018-09-18 11:35:05,831 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:05,831 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:35:05,831 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:05,832 INFO L82 PathProgramCache]: Analyzing trace with hash 2017235510, now seen corresponding path program 1 times [2018-09-18 11:35:05,832 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:05,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:05,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:05,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:05,833 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 466 proven. 198 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2018-09-18 11:35:06,726 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:35:06,726 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:35:06,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:06,735 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:35:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:07,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:35:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 715 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-09-18 11:35:08,548 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:35:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 471 proven. 109 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-09-18 11:35:09,773 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:35:09,773 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:35:09,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:09,791 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:35:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:10,307 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:35:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 710 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-09-18 11:35:10,942 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:35:11,698 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 468 proven. 196 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2018-09-18 11:35:11,700 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:35:11,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:35:11,701 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:35:11,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:35:11,702 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:35:11,702 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:35:11,703 INFO L87 Difference]: Start difference. First operand 221471 states and 254226 transitions. Second operand 9 states. [2018-09-18 11:35:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:27,476 INFO L93 Difference]: Finished difference Result 452575 states and 528202 transitions. [2018-09-18 11:35:27,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:35:27,477 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 784 [2018-09-18 11:35:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:28,076 INFO L225 Difference]: With dead ends: 452575 [2018-09-18 11:35:28,077 INFO L226 Difference]: Without dead ends: 231878 [2018-09-18 11:35:28,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3156 GetRequests, 3128 SyntacticMatches, 12 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:35:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231878 states. [2018-09-18 11:35:31,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231878 to 228770. [2018-09-18 11:35:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228770 states. [2018-09-18 11:35:31,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228770 states to 228770 states and 259219 transitions. [2018-09-18 11:35:31,717 INFO L78 Accepts]: Start accepts. Automaton has 228770 states and 259219 transitions. Word has length 784 [2018-09-18 11:35:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:31,718 INFO L480 AbstractCegarLoop]: Abstraction has 228770 states and 259219 transitions. [2018-09-18 11:35:31,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:35:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 228770 states and 259219 transitions. [2018-09-18 11:35:31,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2018-09-18 11:35:31,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:31,829 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:35:31,829 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:31,830 INFO L82 PathProgramCache]: Analyzing trace with hash -518489365, now seen corresponding path program 1 times [2018-09-18 11:35:31,830 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:31,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:31,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:31,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:31,831 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2018-09-18 11:35:33,443 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:35:33,443 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:35:33,444 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:33,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:35:33,444 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:35:33,444 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:35:33,445 INFO L87 Difference]: Start difference. First operand 228770 states and 259219 transitions. Second operand 4 states. [2018-09-18 11:35:44,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:44,987 INFO L93 Difference]: Finished difference Result 546377 states and 626570 transitions. [2018-09-18 11:35:44,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:35:44,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 785 [2018-09-18 11:35:44,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:44,990 INFO L225 Difference]: With dead ends: 546377 [2018-09-18 11:35:44,990 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 11:35:45,493 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 11:35:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 11:35:45,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 11:35:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 11:35:45,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 11:35:45,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 785 [2018-09-18 11:35:45,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:45,497 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 11:35:45,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:35:45,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 11:35:45,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 11:35:45,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 11:35:49,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:49,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:50,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:51,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:52,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:52,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:52,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:52,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:52,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:52,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:35:52,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-09-18 11:35:52,350 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-18 11:35:52,352 INFO L168 Benchmark]: Toolchain (without parser) took 214229.34 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 3.7 GB. Max. memory is 7.1 GB. [2018-09-18 11:35:52,356 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:35:52,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2127.24 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:35:52,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 276.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:35:52,359 INFO L168 Benchmark]: Boogie Preprocessor took 895.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 917.5 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 128.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:35:52,360 INFO L168 Benchmark]: RCFGBuilder took 11093.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 667.8 MB). Peak memory consumption was 667.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:35:52,360 INFO L168 Benchmark]: TraceAbstraction took 199829.51 ms. Allocated memory was 2.4 GB in the beginning and 5.0 GB in the end (delta: 2.5 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-09-18 11:35:52,366 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2127.24 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 276.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 895.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 917.5 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 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11093.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 667.8 MB). Peak memory consumption was 667.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 199829.51 ms. Allocated memory was 2.4 GB in the beginning and 5.0 GB in the end (delta: 2.5 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 638. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label29_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-35-52-388.csv Completed graceful shutdown