java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:45:24,578 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:45:24,580 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:45:24,598 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:45:24,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:45:24,599 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:45:24,600 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:45:24,602 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:45:24,604 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:45:24,604 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:45:24,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:45:24,606 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:45:24,606 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:45:24,607 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:45:24,609 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:45:24,609 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:45:24,610 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:45:24,612 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:45:24,614 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:45:24,616 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:45:24,617 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:45:24,618 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:45:24,621 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:45:24,627 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:45:24,628 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:45:24,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:45:24,629 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:45:24,630 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:45:24,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:45:24,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:45:24,647 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:45:24,647 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:45:24,647 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:45:24,648 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:45:24,648 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:45:24,648 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:45:24,648 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:45:24,648 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:45:24,649 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:45:24,649 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:45:24,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:45:24,650 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:45:24,650 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:45:24,650 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:45:24,650 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:45:24,651 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:45:24,651 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:45:24,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:45:24,651 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:45:24,651 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:45:24,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:45:24,652 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:45:24,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:45:24,652 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:45:24,652 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:45:24,653 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:45:24,653 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:45:24,653 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:45:24,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:45:24,653 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:45:24,654 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:45:24,654 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:45:24,723 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:45:24,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:45:24,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:45:24,741 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:45:24,742 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:45:24,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-18 11:45:25,099 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec21dac4/437a304744d14ed397a6c7a1612ce005/FLAGcbbbe0b01 [2018-09-18 11:45:25,632 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:45:25,633 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-18 11:45:25,671 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec21dac4/437a304744d14ed397a6c7a1612ce005/FLAGcbbbe0b01 [2018-09-18 11:45:25,694 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec21dac4/437a304744d14ed397a6c7a1612ce005 [2018-09-18 11:45:25,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:45:25,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:45:25,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:25,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:45:25,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:45:25,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:25" (1/1) ... [2018-09-18 11:45:25,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a96985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:25, skipping insertion in model container [2018-09-18 11:45:25,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:25" (1/1) ... [2018-09-18 11:45:25,743 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:45:27,129 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:27,150 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:45:27,862 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:28,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28 WrapperNode [2018-09-18 11:45:28,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:28,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:28,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:45:28,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:45:28,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:28,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:28,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:28,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:45:28,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:45:28,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:45:29,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:29,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:29,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:29,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:29,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:29,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:29,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:29,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:45:29,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:45:29,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:45:29,973 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:45:29,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:45:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:45:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:45:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:45:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:45:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:45:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:45:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:45:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:45:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:45:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:45:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:45:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:45:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:45:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:45:43,255 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:45:43,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:45:43 BoogieIcfgContainer [2018-09-18 11:45:43,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:45:43,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:45:43,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:45:43,260 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:45:43,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:45:25" (1/3) ... [2018-09-18 11:45:43,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484141ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:45:43, skipping insertion in model container [2018-09-18 11:45:43,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28" (2/3) ... [2018-09-18 11:45:43,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484141ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:45:43, skipping insertion in model container [2018-09-18 11:45:43,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:45:43" (3/3) ... [2018-09-18 11:45:43,264 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label52_true-unreach-call.c [2018-09-18 11:45:43,273 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:45:43,283 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:45:43,346 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:45:43,347 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:45:43,347 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:45:43,348 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:45:43,348 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:45:43,348 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:45:43,348 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:45:43,348 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:45:43,348 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:45:43,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:45:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-18 11:45:43,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:43,402 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:43,403 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:43,413 INFO L82 PathProgramCache]: Analyzing trace with hash -774157709, now seen corresponding path program 1 times [2018-09-18 11:45:43,416 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:43,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:43,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:43,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:43,470 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:43,934 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:45:44,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:44,110 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:44,110 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:45:44,110 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:44,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:45:44,133 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:45:44,133 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:45:44,136 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-18 11:45:54,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:54,999 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-09-18 11:45:55,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:45:55,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-09-18 11:45:55,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:55,041 INFO L225 Difference]: With dead ends: 3093 [2018-09-18 11:45:55,042 INFO L226 Difference]: Without dead ends: 1971 [2018-09-18 11:45:55,055 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:45:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-09-18 11:45:55,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-09-18 11:45:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-09-18 11:45:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-09-18 11:45:55,212 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 71 [2018-09-18 11:45:55,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:55,213 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-09-18 11:45:55,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:45:55,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-09-18 11:45:55,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-09-18 11:45:55,226 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:55,227 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:55,227 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:55,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1438454356, now seen corresponding path program 1 times [2018-09-18 11:45:55,229 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:55,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:55,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:55,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:55,231 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:55,751 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:55,751 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:45:55,751 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:55,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:45:55,753 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:45:55,754 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:45:55,754 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-09-18 11:46:15,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:15,571 INFO L93 Difference]: Finished difference Result 5630 states and 10205 transitions. [2018-09-18 11:46:15,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:46:15,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-09-18 11:46:15,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:15,602 INFO L225 Difference]: With dead ends: 5630 [2018-09-18 11:46:15,602 INFO L226 Difference]: Without dead ends: 3679 [2018-09-18 11:46:15,611 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 11:46:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2018-09-18 11:46:15,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3636. [2018-09-18 11:46:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3636 states. [2018-09-18 11:46:15,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5828 transitions. [2018-09-18 11:46:15,728 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5828 transitions. Word has length 154 [2018-09-18 11:46:15,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:15,728 INFO L480 AbstractCegarLoop]: Abstraction has 3636 states and 5828 transitions. [2018-09-18 11:46:15,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:46:15,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5828 transitions. [2018-09-18 11:46:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-18 11:46:15,732 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:15,733 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:46:15,733 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:15,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1449223166, now seen corresponding path program 1 times [2018-09-18 11:46:15,734 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:15,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:15,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:15,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:15,735 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:15,982 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:15,982 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:46:15,982 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:15,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:46:15,983 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:46:15,983 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:46:15,984 INFO L87 Difference]: Start difference. First operand 3636 states and 5828 transitions. Second operand 5 states. [2018-09-18 11:46:46,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:46,055 INFO L93 Difference]: Finished difference Result 13465 states and 21919 transitions. [2018-09-18 11:46:46,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:46:46,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2018-09-18 11:46:46,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:46,116 INFO L225 Difference]: With dead ends: 13465 [2018-09-18 11:46:46,116 INFO L226 Difference]: Without dead ends: 9835 [2018-09-18 11:46:46,139 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:46:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9835 states. [2018-09-18 11:46:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9835 to 9640. [2018-09-18 11:46:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9640 states. [2018-09-18 11:46:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9640 states to 9640 states and 14660 transitions. [2018-09-18 11:46:46,426 INFO L78 Accepts]: Start accepts. Automaton has 9640 states and 14660 transitions. Word has length 161 [2018-09-18 11:46:46,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:46,426 INFO L480 AbstractCegarLoop]: Abstraction has 9640 states and 14660 transitions. [2018-09-18 11:46:46,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:46:46,427 INFO L276 IsEmpty]: Start isEmpty. Operand 9640 states and 14660 transitions. [2018-09-18 11:46:46,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-09-18 11:46:46,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:46,434 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:46:46,434 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:46,435 INFO L82 PathProgramCache]: Analyzing trace with hash 2036148572, now seen corresponding path program 1 times [2018-09-18 11:46:46,435 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:46,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:46,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:46,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:46,436 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:46,807 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:46,808 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:46:46,808 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:46,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:46:46,809 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:46:46,809 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:46:46,809 INFO L87 Difference]: Start difference. First operand 9640 states and 14660 transitions. Second operand 5 states. [2018-09-18 11:47:02,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:02,062 INFO L93 Difference]: Finished difference Result 29019 states and 46089 transitions. [2018-09-18 11:47:02,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:47:02,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2018-09-18 11:47:02,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:02,177 INFO L225 Difference]: With dead ends: 29019 [2018-09-18 11:47:02,177 INFO L226 Difference]: Without dead ends: 19385 [2018-09-18 11:47:02,212 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:47:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19385 states. [2018-09-18 11:47:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19385 to 19048. [2018-09-18 11:47:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19048 states. [2018-09-18 11:47:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19048 states to 19048 states and 27570 transitions. [2018-09-18 11:47:02,671 INFO L78 Accepts]: Start accepts. Automaton has 19048 states and 27570 transitions. Word has length 170 [2018-09-18 11:47:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:02,672 INFO L480 AbstractCegarLoop]: Abstraction has 19048 states and 27570 transitions. [2018-09-18 11:47:02,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:47:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 19048 states and 27570 transitions. [2018-09-18 11:47:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-09-18 11:47:02,681 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:02,682 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:02,682 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1111253638, now seen corresponding path program 1 times [2018-09-18 11:47:02,682 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:02,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:02,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:02,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:02,684 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:03,136 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:47:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:03,385 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:47:03,386 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:47:03,386 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:03,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:47:03,387 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:47:03,387 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:47:03,387 INFO L87 Difference]: Start difference. First operand 19048 states and 27570 transitions. Second operand 6 states. [2018-09-18 11:47:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:17,705 INFO L93 Difference]: Finished difference Result 58353 states and 91829 transitions. [2018-09-18 11:47:17,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:47:17,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2018-09-18 11:47:17,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:17,857 INFO L225 Difference]: With dead ends: 58353 [2018-09-18 11:47:17,857 INFO L226 Difference]: Without dead ends: 39311 [2018-09-18 11:47:17,942 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:47:17,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39311 states. [2018-09-18 11:47:18,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39311 to 39136. [2018-09-18 11:47:18,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39136 states. [2018-09-18 11:47:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39136 states to 39136 states and 54978 transitions. [2018-09-18 11:47:18,830 INFO L78 Accepts]: Start accepts. Automaton has 39136 states and 54978 transitions. Word has length 181 [2018-09-18 11:47:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:18,831 INFO L480 AbstractCegarLoop]: Abstraction has 39136 states and 54978 transitions. [2018-09-18 11:47:18,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:47:18,831 INFO L276 IsEmpty]: Start isEmpty. Operand 39136 states and 54978 transitions. [2018-09-18 11:47:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-18 11:47:18,843 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:18,843 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:18,844 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:18,844 INFO L82 PathProgramCache]: Analyzing trace with hash -747971991, now seen corresponding path program 1 times [2018-09-18 11:47:18,844 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:18,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:18,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:18,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:18,846 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:19,138 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:47:19,554 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:19,554 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:47:19,555 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:47:19,555 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:19,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:47:19,556 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:47:19,556 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:47:19,556 INFO L87 Difference]: Start difference. First operand 39136 states and 54978 transitions. Second operand 6 states. [2018-09-18 11:47:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:31,979 INFO L93 Difference]: Finished difference Result 98865 states and 157153 transitions. [2018-09-18 11:47:31,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:47:31,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2018-09-18 11:47:31,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:32,249 INFO L225 Difference]: With dead ends: 98865 [2018-09-18 11:47:32,249 INFO L226 Difference]: Without dead ends: 59735 [2018-09-18 11:47:32,361 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:47:32,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59735 states. [2018-09-18 11:47:33,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59735 to 59501. [2018-09-18 11:47:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59501 states. [2018-09-18 11:47:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59501 states to 59501 states and 85525 transitions. [2018-09-18 11:47:33,793 INFO L78 Accepts]: Start accepts. Automaton has 59501 states and 85525 transitions. Word has length 190 [2018-09-18 11:47:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:33,793 INFO L480 AbstractCegarLoop]: Abstraction has 59501 states and 85525 transitions. [2018-09-18 11:47:33,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:47:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 59501 states and 85525 transitions. [2018-09-18 11:47:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-09-18 11:47:33,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:33,829 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:33,829 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:33,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1403677423, now seen corresponding path program 1 times [2018-09-18 11:47:33,830 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:33,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:33,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:33,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:33,831 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:34,148 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:47:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:34,600 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:47:34,600 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:47:34,600 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:34,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:47:34,601 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:47:34,601 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:47:34,602 INFO L87 Difference]: Start difference. First operand 59501 states and 85525 transitions. Second operand 6 states. [2018-09-18 11:47:43,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:43,966 INFO L93 Difference]: Finished difference Result 125387 states and 184810 transitions. [2018-09-18 11:47:43,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:47:43,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 265 [2018-09-18 11:47:43,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:44,186 INFO L225 Difference]: With dead ends: 125387 [2018-09-18 11:47:44,187 INFO L226 Difference]: Without dead ends: 65892 [2018-09-18 11:47:44,340 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:47:44,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65892 states. [2018-09-18 11:47:45,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65892 to 65760. [2018-09-18 11:47:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65760 states. [2018-09-18 11:47:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65760 states to 65760 states and 88954 transitions. [2018-09-18 11:47:46,137 INFO L78 Accepts]: Start accepts. Automaton has 65760 states and 88954 transitions. Word has length 265 [2018-09-18 11:47:46,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:46,137 INFO L480 AbstractCegarLoop]: Abstraction has 65760 states and 88954 transitions. [2018-09-18 11:47:46,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:47:46,138 INFO L276 IsEmpty]: Start isEmpty. Operand 65760 states and 88954 transitions. [2018-09-18 11:47:46,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-09-18 11:47:46,167 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:46,167 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:46,168 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:46,168 INFO L82 PathProgramCache]: Analyzing trace with hash -2001119171, now seen corresponding path program 1 times [2018-09-18 11:47:46,168 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:46,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:46,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:46,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:46,172 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:46,607 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:47:46,608 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:47:46,608 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:46,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:47:46,609 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:47:46,609 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:47:46,609 INFO L87 Difference]: Start difference. First operand 65760 states and 88954 transitions. Second operand 5 states. [2018-09-18 11:48:12,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:12,485 INFO L93 Difference]: Finished difference Result 167422 states and 237483 transitions. [2018-09-18 11:48:12,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:48:12,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2018-09-18 11:48:12,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:12,786 INFO L225 Difference]: With dead ends: 167422 [2018-09-18 11:48:12,786 INFO L226 Difference]: Without dead ends: 101668 [2018-09-18 11:48:12,926 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:48:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101668 states. [2018-09-18 11:48:14,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101668 to 101468. [2018-09-18 11:48:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101468 states. [2018-09-18 11:48:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101468 states to 101468 states and 142894 transitions. [2018-09-18 11:48:15,349 INFO L78 Accepts]: Start accepts. Automaton has 101468 states and 142894 transitions. Word has length 271 [2018-09-18 11:48:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:15,350 INFO L480 AbstractCegarLoop]: Abstraction has 101468 states and 142894 transitions. [2018-09-18 11:48:15,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:48:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 101468 states and 142894 transitions. [2018-09-18 11:48:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-18 11:48:15,374 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:15,375 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:48:15,375 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:15,376 INFO L82 PathProgramCache]: Analyzing trace with hash -227591905, now seen corresponding path program 1 times [2018-09-18 11:48:15,376 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:15,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:15,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:15,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:15,377 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 205 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:16,177 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:16,178 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 11:48:16,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:16,189 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:16,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:48:16,657 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:48:17,151 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:48:17,151 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2018-09-18 11:48:17,152 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:48:17,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:48:17,153 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:48:17,153 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:48:17,153 INFO L87 Difference]: Start difference. First operand 101468 states and 142894 transitions. Second operand 3 states. [2018-09-18 11:48:26,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:26,436 INFO L93 Difference]: Finished difference Result 202933 states and 286584 transitions. [2018-09-18 11:48:26,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:48:26,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2018-09-18 11:48:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:26,918 INFO L225 Difference]: With dead ends: 202933 [2018-09-18 11:48:26,918 INFO L226 Difference]: Without dead ends: 102278 [2018-09-18 11:48:27,168 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 563 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:48:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102278 states. [2018-09-18 11:48:28,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102278 to 99058. [2018-09-18 11:48:28,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99058 states. [2018-09-18 11:48:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99058 states to 99058 states and 126634 transitions. [2018-09-18 11:48:29,254 INFO L78 Accepts]: Start accepts. Automaton has 99058 states and 126634 transitions. Word has length 282 [2018-09-18 11:48:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:29,255 INFO L480 AbstractCegarLoop]: Abstraction has 99058 states and 126634 transitions. [2018-09-18 11:48:29,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:48:29,255 INFO L276 IsEmpty]: Start isEmpty. Operand 99058 states and 126634 transitions. [2018-09-18 11:48:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-09-18 11:48:29,306 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:29,307 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:48:29,307 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:29,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1413713886, now seen corresponding path program 1 times [2018-09-18 11:48:29,308 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:29,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:29,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:29,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:29,309 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:29,654 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-09-18 11:48:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-18 11:48:29,725 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:29,725 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 11:48:29,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:29,741 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:29,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-09-18 11:48:30,095 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-09-18 11:48:30,527 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:48:30,528 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [3] total 5 [2018-09-18 11:48:30,528 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:48:30,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:48:30,529 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:48:30,529 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:48:30,530 INFO L87 Difference]: Start difference. First operand 99058 states and 126634 transitions. Second operand 3 states. [2018-09-18 11:48:38,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:38,226 INFO L93 Difference]: Finished difference Result 196424 states and 251409 transitions. [2018-09-18 11:48:38,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:48:38,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2018-09-18 11:48:38,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:38,669 INFO L225 Difference]: With dead ends: 196424 [2018-09-18 11:48:38,669 INFO L226 Difference]: Without dead ends: 98179 [2018-09-18 11:48:38,834 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:48:38,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98179 states. [2018-09-18 11:48:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98179 to 98176. [2018-09-18 11:48:41,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98176 states. [2018-09-18 11:48:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98176 states to 98176 states and 125413 transitions. [2018-09-18 11:48:41,929 INFO L78 Accepts]: Start accepts. Automaton has 98176 states and 125413 transitions. Word has length 357 [2018-09-18 11:48:41,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:41,930 INFO L480 AbstractCegarLoop]: Abstraction has 98176 states and 125413 transitions. [2018-09-18 11:48:41,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:48:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand 98176 states and 125413 transitions. [2018-09-18 11:48:41,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-09-18 11:48:41,973 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:41,974 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:48:41,974 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash 883384537, now seen corresponding path program 1 times [2018-09-18 11:48:41,975 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:41,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:41,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:41,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:41,976 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:42,672 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:42,673 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:48:42,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:42,688 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:42,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-18 11:48:43,030 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:43,288 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:48:43,391 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:48:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 133 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:43,731 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:43,732 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:48:43,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:43,747 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:44,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:44,555 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:46,059 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:48:46,059 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 5, 5] total 21 [2018-09-18 11:48:46,059 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:48:46,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-18 11:48:46,060 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-18 11:48:46,060 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:48:46,061 INFO L87 Difference]: Start difference. First operand 98176 states and 125413 transitions. Second operand 11 states. Received shutdown request... [2018-09-18 11:49:11,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-09-18 11:49:11,135 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:49:11,140 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:49:11,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:49:11 BoogieIcfgContainer [2018-09-18 11:49:11,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:49:11,142 INFO L168 Benchmark]: Toolchain (without parser) took 225433.46 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -1.9 GB). Peak memory consumption was 902.4 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:11,143 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:49:11,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2587.35 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:11,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 368.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:11,145 INFO L168 Benchmark]: Boogie Preprocessor took 1302.06 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:11,146 INFO L168 Benchmark]: RCFGBuilder took 13283.48 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 153.6 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 2.4 MB). Peak memory consumption was 748.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:11,147 INFO L168 Benchmark]: TraceAbstraction took 207884.11 ms. Allocated memory was 2.7 GB in the beginning and 4.4 GB in the end (delta: 1.7 GB). Free memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 675.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:11,152 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2587.35 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 368.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1302.06 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13283.48 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 153.6 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 2.4 MB). Peak memory consumption was 748.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207884.11 ms. Allocated memory was 2.7 GB in the beginning and 4.4 GB in the end (delta: 1.7 GB). Free memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 675.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 204]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 204). Cancelled while BasicCegarLoop was constructing difference of abstraction (98176states) and FLOYD_HOARE automaton (currently 66 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (70029 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 207.8s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 183.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5387 SDtfs, 45146 SDslu, 5185 SDs, 0 SdLazy, 71413 SolverSat, 14964 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 148.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3060 GetRequests, 2912 SyntacticMatches, 9 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101468occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 12.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 4553 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 3941 NumberOfCodeBlocks, 3941 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5361 ConstructedInterpolants, 0 QuantifiedInterpolants, 5724825 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2320 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 2929/3063 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-49-11-175.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-49-11-175.csv Completed graceful shutdown