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-dace188-m [2018-09-14 17:35:23,702 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:35:23,705 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:35:23,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:35:23,718 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:35:23,719 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:35:23,720 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:35:23,722 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:35:23,723 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:35:23,724 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:35:23,725 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:35:23,725 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:35:23,726 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:35:23,727 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:35:23,728 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:35:23,729 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:35:23,730 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:35:23,732 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:35:23,734 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:35:23,736 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:35:23,737 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:35:23,738 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:35:23,741 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-14 17:35:23,748 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:35:23,748 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:35:23,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:35:23,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:35:23,751 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 17:35:23,776 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:35:23,777 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:35:23,778 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:35:23,778 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:35:23,778 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:35:23,778 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:35:23,778 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:35:23,778 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:35:23,779 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:35:23,779 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:35:23,779 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:35:23,780 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:35:23,780 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:35:23,780 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:35:23,780 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:35:23,781 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:35:23,781 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:35:23,781 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:35:23,781 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:35:23,781 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:35:23,782 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:35:23,782 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:35:23,782 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:35:23,782 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:35:23,782 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:35:23,783 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:35:23,783 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:35:23,783 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:35:23,783 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:35:23,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:35:23,783 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:35:23,784 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:35:23,784 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:35:23,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:35:23,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:35:23,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:35:23,853 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:35:23,854 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:35:23,855 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-14 17:35:24,238 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a425034/30b1d386b7f24c4aa3ec17db572ad9b5/FLAG972ec5aaf [2018-09-14 17:35:24,721 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:35:24,722 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-14 17:35:24,769 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a425034/30b1d386b7f24c4aa3ec17db572ad9b5/FLAG972ec5aaf [2018-09-14 17:35:24,791 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a425034/30b1d386b7f24c4aa3ec17db572ad9b5 [2018-09-14 17:35:24,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:35:24,810 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:35:24,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:35:24,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:35:24,821 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:35:24,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:35:24" (1/1) ... [2018-09-14 17:35:24,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a64aa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:24, skipping insertion in model container [2018-09-14 17:35:24,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:35:24" (1/1) ... [2018-09-14 17:35:24,839 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:35:26,377 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:35:26,400 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:35:27,088 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:35:27,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27 WrapperNode [2018-09-14 17:35:27,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:35:27,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:35:27,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:35:27,406 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:35:27,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:27,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:27,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:35:27,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:35:27,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:35:27,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:35:28,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:28,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:28,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:28,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:28,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:28,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:28,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... [2018-09-14 17:35:28,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:35:28,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:35:28,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:35:28,913 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:35:28,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:35:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:35:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:35:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:35:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:35:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:35:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:35:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:35:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:35:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:35:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:35:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:35:28,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:35:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:35:28,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:35:42,051 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:35:42,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:35:42 BoogieIcfgContainer [2018-09-14 17:35:42,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:35:42,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:35:42,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:35:42,056 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:35:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:35:24" (1/3) ... [2018-09-14 17:35:42,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a9bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:35:42, skipping insertion in model container [2018-09-14 17:35:42,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:27" (2/3) ... [2018-09-14 17:35:42,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a9bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:35:42, skipping insertion in model container [2018-09-14 17:35:42,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:35:42" (3/3) ... [2018-09-14 17:35:42,060 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label52_true-unreach-call.c [2018-09-14 17:35:42,070 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:35:42,080 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:35:42,143 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:35:42,144 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:35:42,144 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:35:42,144 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:35:42,144 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:35:42,144 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:35:42,144 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:35:42,145 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:35:42,145 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:35:42,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-14 17:35:42,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-14 17:35:42,209 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:42,210 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] [2018-09-14 17:35:42,211 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:42,216 INFO L82 PathProgramCache]: Analyzing trace with hash -774157709, now seen corresponding path program 1 times [2018-09-14 17:35:42,218 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:42,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:42,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:42,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:42,268 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:42,736 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:35:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:35:42,850 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:35:42,850 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:35:42,850 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:42,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:35:42,876 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:35:42,877 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:35:42,880 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-14 17:35:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:53,512 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-09-14 17:35:53,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:35:53,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-09-14 17:35:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:53,549 INFO L225 Difference]: With dead ends: 3093 [2018-09-14 17:35:53,549 INFO L226 Difference]: Without dead ends: 1971 [2018-09-14 17:35:53,563 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:35:53,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-09-14 17:35:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-09-14 17:35:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-09-14 17:35:53,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-09-14 17:35:53,741 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 71 [2018-09-14 17:35:53,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:53,741 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-09-14 17:35:53,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:35:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-09-14 17:35:53,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-09-14 17:35:53,757 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:53,757 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] [2018-09-14 17:35:53,758 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:53,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1438454356, now seen corresponding path program 1 times [2018-09-14 17:35:53,758 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:53,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:53,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:53,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:53,760 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:35:54,214 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:35:54,215 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:35:54,215 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:54,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:35:54,217 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:35:54,217 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:35:54,217 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-09-14 17:36:12,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:12,750 INFO L93 Difference]: Finished difference Result 5630 states and 10205 transitions. [2018-09-14 17:36:12,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:36:12,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-09-14 17:36:12,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:12,778 INFO L225 Difference]: With dead ends: 5630 [2018-09-14 17:36:12,778 INFO L226 Difference]: Without dead ends: 3679 [2018-09-14 17:36:12,787 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:36:12,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2018-09-14 17:36:12,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3636. [2018-09-14 17:36:12,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3636 states. [2018-09-14 17:36:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5828 transitions. [2018-09-14 17:36:12,894 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5828 transitions. Word has length 154 [2018-09-14 17:36:12,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:12,895 INFO L480 AbstractCegarLoop]: Abstraction has 3636 states and 5828 transitions. [2018-09-14 17:36:12,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:36:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5828 transitions. [2018-09-14 17:36:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-14 17:36:12,908 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:12,908 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] [2018-09-14 17:36:12,908 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:12,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1449223166, now seen corresponding path program 1 times [2018-09-14 17:36:12,909 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:12,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:12,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:12,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:12,910 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:36:13,138 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:36:13,138 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:36:13,138 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:36:13,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:36:13,139 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:36:13,139 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:36:13,139 INFO L87 Difference]: Start difference. First operand 3636 states and 5828 transitions. Second operand 5 states. [2018-09-14 17:36:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:43,847 INFO L93 Difference]: Finished difference Result 13465 states and 21919 transitions. [2018-09-14 17:36:43,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:36:43,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2018-09-14 17:36:43,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:43,899 INFO L225 Difference]: With dead ends: 13465 [2018-09-14 17:36:43,899 INFO L226 Difference]: Without dead ends: 9835 [2018-09-14 17:36:43,919 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:36:43,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9835 states. [2018-09-14 17:36:44,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9835 to 9640. [2018-09-14 17:36:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9640 states. [2018-09-14 17:36:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9640 states to 9640 states and 14660 transitions. [2018-09-14 17:36:44,173 INFO L78 Accepts]: Start accepts. Automaton has 9640 states and 14660 transitions. Word has length 161 [2018-09-14 17:36:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:44,173 INFO L480 AbstractCegarLoop]: Abstraction has 9640 states and 14660 transitions. [2018-09-14 17:36:44,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:36:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9640 states and 14660 transitions. [2018-09-14 17:36:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-09-14 17:36:44,179 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:44,179 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] [2018-09-14 17:36:44,180 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:44,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2036148572, now seen corresponding path program 1 times [2018-09-14 17:36:44,180 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:44,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:44,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:44,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:44,181 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:36:44,530 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:36:44,530 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:36:44,530 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:36:44,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:36:44,531 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:36:44,532 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:36:44,532 INFO L87 Difference]: Start difference. First operand 9640 states and 14660 transitions. Second operand 5 states. [2018-09-14 17:37:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:37:01,163 INFO L93 Difference]: Finished difference Result 29019 states and 46089 transitions. [2018-09-14 17:37:01,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:37:01,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2018-09-14 17:37:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:37:01,270 INFO L225 Difference]: With dead ends: 29019 [2018-09-14 17:37:01,270 INFO L226 Difference]: Without dead ends: 19385 [2018-09-14 17:37:01,303 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 [2018-09-14 17:37:01,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19385 states. [2018-09-14 17:37:01,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19385 to 19048. [2018-09-14 17:37:01,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19048 states. [2018-09-14 17:37:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19048 states to 19048 states and 27570 transitions. [2018-09-14 17:37:01,731 INFO L78 Accepts]: Start accepts. Automaton has 19048 states and 27570 transitions. Word has length 170 [2018-09-14 17:37:01,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:37:01,731 INFO L480 AbstractCegarLoop]: Abstraction has 19048 states and 27570 transitions. [2018-09-14 17:37:01,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:37:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 19048 states and 27570 transitions. [2018-09-14 17:37:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-09-14 17:37:01,740 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:37:01,741 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] [2018-09-14 17:37:01,741 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:37:01,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1111253638, now seen corresponding path program 1 times [2018-09-14 17:37:01,741 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:37:01,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:01,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:01,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:01,743 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:37:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:02,124 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:37:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:02,199 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:37:02,199 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:37:02,199 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:37:02,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:37:02,200 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:37:02,200 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:37:02,200 INFO L87 Difference]: Start difference. First operand 19048 states and 27570 transitions. Second operand 6 states. [2018-09-14 17:37:17,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:37:17,027 INFO L93 Difference]: Finished difference Result 58353 states and 91829 transitions. [2018-09-14 17:37:17,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:37:17,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2018-09-14 17:37:17,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:37:17,172 INFO L225 Difference]: With dead ends: 58353 [2018-09-14 17:37:17,173 INFO L226 Difference]: Without dead ends: 39311 [2018-09-14 17:37:17,249 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:37:17,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39311 states. [2018-09-14 17:37:17,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39311 to 39136. [2018-09-14 17:37:17,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39136 states. [2018-09-14 17:37:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39136 states to 39136 states and 54978 transitions. [2018-09-14 17:37:18,048 INFO L78 Accepts]: Start accepts. Automaton has 39136 states and 54978 transitions. Word has length 181 [2018-09-14 17:37:18,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:37:18,048 INFO L480 AbstractCegarLoop]: Abstraction has 39136 states and 54978 transitions. [2018-09-14 17:37:18,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:37:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 39136 states and 54978 transitions. [2018-09-14 17:37:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-14 17:37:18,058 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:37:18,059 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] [2018-09-14 17:37:18,059 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:37:18,059 INFO L82 PathProgramCache]: Analyzing trace with hash -747971991, now seen corresponding path program 1 times [2018-09-14 17:37:18,059 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:37:18,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:18,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:18,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:18,060 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:37:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:18,313 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:37:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:18,701 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:37:18,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:37:18,701 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:37:18,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:37:18,702 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:37:18,702 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:37:18,703 INFO L87 Difference]: Start difference. First operand 39136 states and 54978 transitions. Second operand 6 states. [2018-09-14 17:37:33,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:37:33,601 INFO L93 Difference]: Finished difference Result 98860 states and 157126 transitions. [2018-09-14 17:37:33,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:37:33,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2018-09-14 17:37:33,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:37:33,847 INFO L225 Difference]: With dead ends: 98860 [2018-09-14 17:37:33,847 INFO L226 Difference]: Without dead ends: 59730 [2018-09-14 17:37:33,946 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 [2018-09-14 17:37:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59730 states. [2018-09-14 17:37:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59730 to 59501. [2018-09-14 17:37:35,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59501 states. [2018-09-14 17:37:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59501 states to 59501 states and 85525 transitions. [2018-09-14 17:37:35,208 INFO L78 Accepts]: Start accepts. Automaton has 59501 states and 85525 transitions. Word has length 190 [2018-09-14 17:37:35,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:37:35,209 INFO L480 AbstractCegarLoop]: Abstraction has 59501 states and 85525 transitions. [2018-09-14 17:37:35,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:37:35,209 INFO L276 IsEmpty]: Start isEmpty. Operand 59501 states and 85525 transitions. [2018-09-14 17:37:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-09-14 17:37:35,241 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:37:35,242 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] [2018-09-14 17:37:35,242 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:37:35,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1403677423, now seen corresponding path program 1 times [2018-09-14 17:37:35,243 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:37:35,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:35,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:35,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:35,244 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:37:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:35,548 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:37:35,658 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:35,658 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:37:35,659 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:37:35,659 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:37:35,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:37:35,659 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:37:35,659 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:37:35,660 INFO L87 Difference]: Start difference. First operand 59501 states and 85525 transitions. Second operand 6 states. [2018-09-14 17:37:46,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:37:46,276 INFO L93 Difference]: Finished difference Result 125382 states and 184783 transitions. [2018-09-14 17:37:46,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:37:46,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 265 [2018-09-14 17:37:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:37:46,486 INFO L225 Difference]: With dead ends: 125382 [2018-09-14 17:37:46,486 INFO L226 Difference]: Without dead ends: 65887 [2018-09-14 17:37:46,616 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:37:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65887 states. [2018-09-14 17:37:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65887 to 65760. [2018-09-14 17:37:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65760 states. [2018-09-14 17:37:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65760 states to 65760 states and 88954 transitions. [2018-09-14 17:37:48,210 INFO L78 Accepts]: Start accepts. Automaton has 65760 states and 88954 transitions. Word has length 265 [2018-09-14 17:37:48,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:37:48,211 INFO L480 AbstractCegarLoop]: Abstraction has 65760 states and 88954 transitions. [2018-09-14 17:37:48,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:37:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 65760 states and 88954 transitions. [2018-09-14 17:37:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-09-14 17:37:48,245 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:37:48,245 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] [2018-09-14 17:37:48,246 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:37:48,246 INFO L82 PathProgramCache]: Analyzing trace with hash -2001119171, now seen corresponding path program 1 times [2018-09-14 17:37:48,246 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:37:48,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:48,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:48,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:48,247 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:37:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:48,678 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:37:48,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:37:48,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:37:48,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:37:48,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:37:48,680 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:37:48,680 INFO L87 Difference]: Start difference. First operand 65760 states and 88954 transitions. Second operand 5 states. [2018-09-14 17:38:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:38:14,691 INFO L93 Difference]: Finished difference Result 167425 states and 237485 transitions. [2018-09-14 17:38:14,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:38:14,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2018-09-14 17:38:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:38:15,018 INFO L225 Difference]: With dead ends: 167425 [2018-09-14 17:38:15,018 INFO L226 Difference]: Without dead ends: 101671 [2018-09-14 17:38:15,168 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 [2018-09-14 17:38:15,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101671 states. [2018-09-14 17:38:16,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101671 to 101471. [2018-09-14 17:38:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101471 states. [2018-09-14 17:38:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101471 states to 101471 states and 142926 transitions. [2018-09-14 17:38:17,501 INFO L78 Accepts]: Start accepts. Automaton has 101471 states and 142926 transitions. Word has length 271 [2018-09-14 17:38:17,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:38:17,501 INFO L480 AbstractCegarLoop]: Abstraction has 101471 states and 142926 transitions. [2018-09-14 17:38:17,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:38:17,501 INFO L276 IsEmpty]: Start isEmpty. Operand 101471 states and 142926 transitions. [2018-09-14 17:38:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-14 17:38:17,528 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:38:17,529 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] [2018-09-14 17:38:17,529 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:38:17,529 INFO L82 PathProgramCache]: Analyzing trace with hash -227591905, now seen corresponding path program 1 times [2018-09-14 17:38:17,530 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:38:17,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:17,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:17,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:17,531 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:38:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 205 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:38:18,010 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:38:18,010 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:38:18,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:18,022 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:38:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:18,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:38:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-14 17:38:18,276 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:38:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-14 17:38:18,959 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:38:18,959 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2018-09-14 17:38:18,959 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:38:18,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:38:18,961 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:38:18,961 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:38:18,961 INFO L87 Difference]: Start difference. First operand 101471 states and 142926 transitions. Second operand 3 states. [2018-09-14 17:38:27,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:38:27,852 INFO L93 Difference]: Finished difference Result 202130 states and 285186 transitions. [2018-09-14 17:38:27,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:38:27,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2018-09-14 17:38:27,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:38:28,233 INFO L225 Difference]: With dead ends: 202130 [2018-09-14 17:38:28,233 INFO L226 Difference]: Without dead ends: 101472 [2018-09-14 17:38:28,456 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 563 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:38:28,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101472 states. [2018-09-14 17:38:30,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101472 to 98252. [2018-09-14 17:38:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98252 states. [2018-09-14 17:38:31,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98252 states to 98252 states and 125204 transitions. [2018-09-14 17:38:31,021 INFO L78 Accepts]: Start accepts. Automaton has 98252 states and 125204 transitions. Word has length 282 [2018-09-14 17:38:31,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:38:31,022 INFO L480 AbstractCegarLoop]: Abstraction has 98252 states and 125204 transitions. [2018-09-14 17:38:31,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:38:31,022 INFO L276 IsEmpty]: Start isEmpty. Operand 98252 states and 125204 transitions. [2018-09-14 17:38:31,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-09-14 17:38:31,080 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:38:31,081 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] [2018-09-14 17:38:31,081 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:38:31,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1413713886, now seen corresponding path program 1 times [2018-09-14 17:38:31,081 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:38:31,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:31,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:31,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:31,083 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:38:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:31,414 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-09-14 17:38:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-14 17:38:31,476 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:38:31,476 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:38:31,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:31,495 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:38:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:31,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:38:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-09-14 17:38:31,835 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:38:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-09-14 17:38:32,269 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:38:32,270 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [3] total 5 [2018-09-14 17:38:32,270 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:38:32,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:38:32,271 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:38:32,271 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:38:32,271 INFO L87 Difference]: Start difference. First operand 98252 states and 125204 transitions. Second operand 3 states. [2018-09-14 17:38:38,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:38:38,184 INFO L93 Difference]: Finished difference Result 194812 states and 248549 transitions. [2018-09-14 17:38:38,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:38:38,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2018-09-14 17:38:38,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:38:38,473 INFO L225 Difference]: With dead ends: 194812 [2018-09-14 17:38:38,473 INFO L226 Difference]: Without dead ends: 97373 [2018-09-14 17:38:38,624 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 [2018-09-14 17:38:38,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97373 states. [2018-09-14 17:38:39,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97373 to 97370. [2018-09-14 17:38:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97370 states. [2018-09-14 17:38:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97370 states to 97370 states and 123987 transitions. [2018-09-14 17:38:41,545 INFO L78 Accepts]: Start accepts. Automaton has 97370 states and 123987 transitions. Word has length 357 [2018-09-14 17:38:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:38:41,545 INFO L480 AbstractCegarLoop]: Abstraction has 97370 states and 123987 transitions. [2018-09-14 17:38:41,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:38:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 97370 states and 123987 transitions. [2018-09-14 17:38:41,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-09-14 17:38:41,581 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:38:41,582 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] [2018-09-14 17:38:41,582 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:38:41,583 INFO L82 PathProgramCache]: Analyzing trace with hash 883384537, now seen corresponding path program 1 times [2018-09-14 17:38:41,583 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:38:41,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:41,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:41,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:41,584 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:38:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:38:42,343 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:38:42,343 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:38:42,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:42,353 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:38:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:42,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:38:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-14 17:38:42,847 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:38:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 133 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:38:43,361 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:38:43,361 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:38:43,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:43,377 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:38:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:43,643 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:38:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:38:43,908 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:38:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:38:45,449 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:38:45,449 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 5, 5] total 21 [2018-09-14 17:38:45,450 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:38:45,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-14 17:38:45,452 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-14 17:38:45,452 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2018-09-14 17:38:45,453 INFO L87 Difference]: Start difference. First operand 97370 states and 123987 transitions. Second operand 11 states. Received shutdown request... [2018-09-14 17:39:15,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-09-14 17:39:15,196 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:39:15,202 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:39:15,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:39:15 BoogieIcfgContainer [2018-09-14 17:39:15,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:39:15,203 INFO L168 Benchmark]: Toolchain (without parser) took 230398.29 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-14 17:39:15,204 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 17:39:15,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2593.65 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: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. [2018-09-14 17:39:15,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 331.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:39:15,207 INFO L168 Benchmark]: Boogie Preprocessor took 1174.21 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 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:39:15,208 INFO L168 Benchmark]: RCFGBuilder took 13139.90 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 157.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 366.1 kB). Peak memory consumption was 751.7 MB. Max. memory is 7.1 GB. [2018-09-14 17:39:15,208 INFO L168 Benchmark]: TraceAbstraction took 213149.54 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 2.9 GB in the end (delta: -559.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-14 17:39:15,213 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2593.65 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: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 331.94 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 1174.21 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 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13139.90 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 157.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 366.1 kB). Peak memory consumption was 751.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213149.54 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 2.9 GB in the end (delta: -559.4 MB). Peak memory consumption was 1.1 GB. 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 (97370states) and FLOYD_HOARE automaton (currently 66 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (93657 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 213.0s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 190.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5425 SDtfs, 46716 SDslu, 5340 SDs, 0 SdLazy, 74184 SolverSat, 15462 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 156.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3060 GetRequests, 2912 SyntacticMatches, 9 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101471occurred 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: 12.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 4543 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.0s 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-0-2018-09-14_17-39-15-228.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-0-2018-09-14_17-39-15-228.csv Completed graceful shutdown