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_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:35:24,697 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:35:24,699 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:35:24,711 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:35:24,711 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:35:24,712 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:35:24,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:35:24,715 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:35:24,717 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:35:24,718 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:35:24,719 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:35:24,719 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:35:24,720 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:35:24,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:35:24,731 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:35:24,732 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:35:24,733 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:35:24,734 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:35:24,739 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:35:24,742 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:35:24,744 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:35:24,745 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:35:24,750 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-14 17:35:24,764 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:35:24,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:35:24,765 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:35:24,768 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:35:24,768 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 17:35:24,802 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:35:24,802 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:35:24,804 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:35:24,804 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:35:24,804 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:35:24,805 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:35:24,805 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:35:24,805 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:35:24,805 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:35:24,806 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:35:24,806 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:35:24,806 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:35:24,807 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:35:24,807 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:35:24,807 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:35:24,807 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:35:24,808 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:35:24,808 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:35:24,808 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:35:24,809 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:35:24,809 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:35:24,809 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:35:24,809 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:35:24,809 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:35:24,810 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:35:24,810 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:35:24,810 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:35:24,810 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:35:24,811 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:35:24,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:35:24,811 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:35:24,811 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:35:24,811 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:35:24,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:35:24,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:35:24,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:35:24,892 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:35:24,892 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:35:24,893 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-09-14 17:35:25,261 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14823073d/dc2f35c6022447f09019bb85220c1a7a/FLAG7e26260e2 [2018-09-14 17:35:25,760 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:35:25,761 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-09-14 17:35:25,794 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14823073d/dc2f35c6022447f09019bb85220c1a7a/FLAG7e26260e2 [2018-09-14 17:35:25,811 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14823073d/dc2f35c6022447f09019bb85220c1a7a [2018-09-14 17:35:25,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:35:25,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:35:25,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:35:25,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:35:25,837 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:35:25,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:35:25" (1/1) ... [2018-09-14 17:35:25,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7328c9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:25, skipping insertion in model container [2018-09-14 17:35:25,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:35:25" (1/1) ... [2018-09-14 17:35:25,854 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:35:27,468 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:35:27,490 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:35:28,161 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:35:28,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28 WrapperNode [2018-09-14 17:35:28,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:35:28,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:35:28,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:35:28,551 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:35:28,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:28,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:28,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:35:28,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:35:28,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:35:28,936 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:35:29,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:29,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:29,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:29,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:29,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:30,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:30,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (1/1) ... [2018-09-14 17:35:30,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:35:30,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:35:30,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:35:30,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:35:30,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (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 [2018-09-14 17:35:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:35:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:35:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:35:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:35:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:35:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:35:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:35:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:35:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:35:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:35:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:35:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:35:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:35:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:35:42,348 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:35:42,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:35:42 BoogieIcfgContainer [2018-09-14 17:35:42,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:35:42,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:35:42,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:35:42,353 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:35:42,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:35:25" (1/3) ... [2018-09-14 17:35:42,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39921ba7 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 17:35:42,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:35:28" (2/3) ... [2018-09-14 17:35:42,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39921ba7 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 17:35:42,355 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 17:35:42,357 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label53_true-unreach-call.c [2018-09-14 17:35:42,367 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:35:42,376 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:35:42,441 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:35:42,442 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:35:42,442 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:35:42,442 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:35:42,442 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:35:42,442 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:35:42,442 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:35:42,443 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:35:42,443 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:35:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-14 17:35:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-14 17:35:42,495 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:42,497 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] [2018-09-14 17:35:42,498 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:42,504 INFO L82 PathProgramCache]: Analyzing trace with hash 403353444, now seen corresponding path program 1 times [2018-09-14 17:35:42,507 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:42,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:42,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:42,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:42,561 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:42,971 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:35:43,089 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 17:35:43,091 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:35:43,092 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:35:43,092 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:43,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:35:43,114 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:35:43,115 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:35:43,118 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-14 17:35:53,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:53,376 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-09-14 17:35:53,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:35:53,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-09-14 17:35:53,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:53,413 INFO L225 Difference]: With dead ends: 3093 [2018-09-14 17:35:53,414 INFO L226 Difference]: Without dead ends: 1971 [2018-09-14 17:35:53,423 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 17:35:53,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-09-14 17:35:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-09-14 17:35:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-09-14 17:35:53,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-09-14 17:35:53,594 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 38 [2018-09-14 17:35:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:53,595 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-09-14 17:35:53,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:35:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-09-14 17:35:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-14 17:35:53,602 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:53,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:53,603 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:53,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1014320268, now seen corresponding path program 1 times [2018-09-14 17:35:53,603 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:53,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:53,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:53,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:53,605 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:35:53,992 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:35:53,992 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:35:53,992 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:53,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:35:53,995 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:35:53,995 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:35:53,995 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-09-14 17:36:11,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:11,163 INFO L93 Difference]: Finished difference Result 5627 states and 10356 transitions. [2018-09-14 17:36:11,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:36:11,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-09-14 17:36:11,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:11,189 INFO L225 Difference]: With dead ends: 5627 [2018-09-14 17:36:11,190 INFO L226 Difference]: Without dead ends: 3676 [2018-09-14 17:36:11,197 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 17:36:11,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2018-09-14 17:36:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3643. [2018-09-14 17:36:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2018-09-14 17:36:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5987 transitions. [2018-09-14 17:36:11,314 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5987 transitions. Word has length 121 [2018-09-14 17:36:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:11,314 INFO L480 AbstractCegarLoop]: Abstraction has 3643 states and 5987 transitions. [2018-09-14 17:36:11,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:36:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5987 transitions. [2018-09-14 17:36:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-14 17:36:11,320 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:11,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:11,320 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:11,321 INFO L82 PathProgramCache]: Analyzing trace with hash -504039204, now seen corresponding path program 1 times [2018-09-14 17:36:11,321 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:11,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:11,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:11,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:11,323 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:36:11,609 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:36:11,610 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:36:11,610 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:36:11,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:36:11,611 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:36:11,611 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:36:11,611 INFO L87 Difference]: Start difference. First operand 3643 states and 5987 transitions. Second operand 5 states. [2018-09-14 17:36:25,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:25,828 INFO L93 Difference]: Finished difference Result 10958 states and 18516 transitions. [2018-09-14 17:36:25,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:36:25,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-09-14 17:36:25,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:25,871 INFO L225 Difference]: With dead ends: 10958 [2018-09-14 17:36:25,871 INFO L226 Difference]: Without dead ends: 7321 [2018-09-14 17:36:25,884 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:36:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7321 states. [2018-09-14 17:36:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7321 to 7130. [2018-09-14 17:36:26,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7130 states. [2018-09-14 17:36:26,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7130 states to 7130 states and 10922 transitions. [2018-09-14 17:36:26,107 INFO L78 Accepts]: Start accepts. Automaton has 7130 states and 10922 transitions. Word has length 137 [2018-09-14 17:36:26,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:26,108 INFO L480 AbstractCegarLoop]: Abstraction has 7130 states and 10922 transitions. [2018-09-14 17:36:26,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:36:26,108 INFO L276 IsEmpty]: Start isEmpty. Operand 7130 states and 10922 transitions. [2018-09-14 17:36:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-14 17:36:26,113 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:26,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:26,113 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:26,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1493608594, now seen corresponding path program 1 times [2018-09-14 17:36:26,114 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:26,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:26,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:26,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:26,116 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:36:26,447 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:36:26,447 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:36:26,447 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:36:26,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:36:26,448 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:36:26,448 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:36:26,448 INFO L87 Difference]: Start difference. First operand 7130 states and 10922 transitions. Second operand 6 states. [2018-09-14 17:36:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:37,391 INFO L93 Difference]: Finished difference Result 19764 states and 31243 transitions. [2018-09-14 17:36:37,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:36:37,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-09-14 17:36:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:37,451 INFO L225 Difference]: With dead ends: 19764 [2018-09-14 17:36:37,451 INFO L226 Difference]: Without dead ends: 12640 [2018-09-14 17:36:37,487 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:36:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12640 states. [2018-09-14 17:36:37,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12640 to 12438. [2018-09-14 17:36:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12438 states. [2018-09-14 17:36:37,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12438 states to 12438 states and 18018 transitions. [2018-09-14 17:36:37,797 INFO L78 Accepts]: Start accepts. Automaton has 12438 states and 18018 transitions. Word has length 174 [2018-09-14 17:36:37,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:37,798 INFO L480 AbstractCegarLoop]: Abstraction has 12438 states and 18018 transitions. [2018-09-14 17:36:37,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:36:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 12438 states and 18018 transitions. [2018-09-14 17:36:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-09-14 17:36:37,804 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:37,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:37,805 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1047575411, now seen corresponding path program 1 times [2018-09-14 17:36:37,805 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:37,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:37,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:37,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:37,807 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:36:38,399 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:36:38,399 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:36:38,399 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:36:38,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:36:38,400 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:36:38,401 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:36:38,401 INFO L87 Difference]: Start difference. First operand 12438 states and 18018 transitions. Second operand 6 states. [2018-09-14 17:36:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:58,277 INFO L93 Difference]: Finished difference Result 42941 states and 69035 transitions. [2018-09-14 17:36:58,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-14 17:36:58,281 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2018-09-14 17:36:58,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:58,443 INFO L225 Difference]: With dead ends: 42941 [2018-09-14 17:36:58,443 INFO L226 Difference]: Without dead ends: 30509 [2018-09-14 17:36:58,519 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:36:58,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30509 states. [2018-09-14 17:36:59,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30509 to 30269. [2018-09-14 17:36:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30269 states. [2018-09-14 17:36:59,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30269 states to 30269 states and 43632 transitions. [2018-09-14 17:36:59,312 INFO L78 Accepts]: Start accepts. Automaton has 30269 states and 43632 transitions. Word has length 196 [2018-09-14 17:36:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:59,313 INFO L480 AbstractCegarLoop]: Abstraction has 30269 states and 43632 transitions. [2018-09-14 17:36:59,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:36:59,313 INFO L276 IsEmpty]: Start isEmpty. Operand 30269 states and 43632 transitions. [2018-09-14 17:36:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-14 17:36:59,321 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:59,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:59,321 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:59,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1056237497, now seen corresponding path program 1 times [2018-09-14 17:36:59,322 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:59,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:59,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:59,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:59,323 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:59,635 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:37:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:00,106 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:37:00,106 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:37:00,106 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:37:00,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:37:00,107 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:37:00,107 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:37:00,108 INFO L87 Difference]: Start difference. First operand 30269 states and 43632 transitions. Second operand 6 states. [2018-09-14 17:37:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:37:15,741 INFO L93 Difference]: Finished difference Result 73769 states and 114968 transitions. [2018-09-14 17:37:15,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:37:15,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-09-14 17:37:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:37:16,209 INFO L225 Difference]: With dead ends: 73769 [2018-09-14 17:37:16,210 INFO L226 Difference]: Without dead ends: 43506 [2018-09-14 17:37:16,282 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 17:37:16,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43506 states. [2018-09-14 17:37:17,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43506 to 43191. [2018-09-14 17:37:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43191 states. [2018-09-14 17:37:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43191 states to 43191 states and 60876 transitions. [2018-09-14 17:37:17,126 INFO L78 Accepts]: Start accepts. Automaton has 43191 states and 60876 transitions. Word has length 219 [2018-09-14 17:37:17,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:37:17,126 INFO L480 AbstractCegarLoop]: Abstraction has 43191 states and 60876 transitions. [2018-09-14 17:37:17,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:37:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 43191 states and 60876 transitions. [2018-09-14 17:37:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-14 17:37:17,136 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:37:17,140 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:37:17,140 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:37:17,140 INFO L82 PathProgramCache]: Analyzing trace with hash 342183432, now seen corresponding path program 1 times [2018-09-14 17:37:17,140 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:37:17,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:17,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:17,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:17,142 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:37:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:17,489 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 62 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:37:17,490 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:37:17,490 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 17:37:17,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:17,520 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:37:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:17,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:37:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-09-14 17:37:18,173 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:37:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 62 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:37:18,865 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:37:18,865 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-14 17:37:18,865 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:37:18,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:37:18,866 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:37:18,867 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:37:18,867 INFO L87 Difference]: Start difference. First operand 43191 states and 60876 transitions. Second operand 5 states. [2018-09-14 17:37:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:37:36,334 INFO L93 Difference]: Finished difference Result 100562 states and 152922 transitions. [2018-09-14 17:37:36,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:37:36,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2018-09-14 17:37:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:37:36,704 INFO L225 Difference]: With dead ends: 100562 [2018-09-14 17:37:36,704 INFO L226 Difference]: Without dead ends: 57377 [2018-09-14 17:37:36,897 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 481 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:37:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57377 states. [2018-09-14 17:37:38,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57377 to 57079. [2018-09-14 17:37:38,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57079 states. [2018-09-14 17:37:38,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57079 states to 57079 states and 83462 transitions. [2018-09-14 17:37:38,792 INFO L78 Accepts]: Start accepts. Automaton has 57079 states and 83462 transitions. Word has length 243 [2018-09-14 17:37:38,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:37:38,792 INFO L480 AbstractCegarLoop]: Abstraction has 57079 states and 83462 transitions. [2018-09-14 17:37:38,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:37:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 57079 states and 83462 transitions. [2018-09-14 17:37:38,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-09-14 17:37:38,808 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:37:38,808 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 17:37:38,809 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:37:38,809 INFO L82 PathProgramCache]: Analyzing trace with hash -331859944, now seen corresponding path program 1 times [2018-09-14 17:37:38,809 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:37:38,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:38,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:38,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:38,810 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:37:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:40,924 WARN L178 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-14 17:37:41,110 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 139 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:41,111 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:37:41,111 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 17:37:41,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:41,118 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:37:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:41,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:37:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-14 17:37:41,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:37:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-14 17:37:41,416 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:37:41,417 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2018-09-14 17:37:41,417 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:37:41,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:37:41,417 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:37:41,418 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:37:41,418 INFO L87 Difference]: Start difference. First operand 57079 states and 83462 transitions. Second operand 3 states. [2018-09-14 17:37:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:37:50,122 INFO L93 Difference]: Finished difference Result 123070 states and 182284 transitions. [2018-09-14 17:37:50,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:37:50,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2018-09-14 17:37:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:37:50,369 INFO L225 Difference]: With dead ends: 123070 [2018-09-14 17:37:50,369 INFO L226 Difference]: Without dead ends: 65997 [2018-09-14 17:37:50,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:37:50,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65997 states. [2018-09-14 17:37:52,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65997 to 63553. [2018-09-14 17:37:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63553 states. [2018-09-14 17:37:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63553 states to 63553 states and 86819 transitions. [2018-09-14 17:37:52,504 INFO L78 Accepts]: Start accepts. Automaton has 63553 states and 86819 transitions. Word has length 249 [2018-09-14 17:37:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:37:52,505 INFO L480 AbstractCegarLoop]: Abstraction has 63553 states and 86819 transitions. [2018-09-14 17:37:52,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:37:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 63553 states and 86819 transitions. [2018-09-14 17:37:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-09-14 17:37:52,528 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:37:52,528 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:37:52,529 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:37:52,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1966605005, now seen corresponding path program 1 times [2018-09-14 17:37:52,529 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:37:52,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:52,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:52,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:37:52,531 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:37:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:53,177 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:37:53,177 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 17:37:53,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:53,190 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:37:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:53,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:37:53,431 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:53,432 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:37:53,575 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 17:37:53,923 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:53,944 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:37:53,944 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 17:37:53,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:37:53,961 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:37:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:37:54,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:37:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:54,405 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:37:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:37:54,871 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:37:54,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-14 17:37:54,872 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:37:54,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:37:54,873 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:37:54,875 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-09-14 17:37:54,876 INFO L87 Difference]: Start difference. First operand 63553 states and 86819 transitions. Second operand 9 states. [2018-09-14 17:38:17,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:38:17,739 INFO L93 Difference]: Finished difference Result 134978 states and 226960 transitions. [2018-09-14 17:38:17,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-14 17:38:17,740 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 317 [2018-09-14 17:38:17,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:38:18,291 INFO L225 Difference]: With dead ends: 134978 [2018-09-14 17:38:18,292 INFO L226 Difference]: Without dead ends: 71125 [2018-09-14 17:38:18,594 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1325 GetRequests, 1274 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=466, Invalid=2084, Unknown=0, NotChecked=0, Total=2550 [2018-09-14 17:38:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71125 states. [2018-09-14 17:38:21,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71125 to 70143. [2018-09-14 17:38:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70143 states. [2018-09-14 17:38:22,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70143 states to 70143 states and 97331 transitions. [2018-09-14 17:38:22,260 INFO L78 Accepts]: Start accepts. Automaton has 70143 states and 97331 transitions. Word has length 317 [2018-09-14 17:38:22,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:38:22,261 INFO L480 AbstractCegarLoop]: Abstraction has 70143 states and 97331 transitions. [2018-09-14 17:38:22,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:38:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 70143 states and 97331 transitions. [2018-09-14 17:38:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-09-14 17:38:22,308 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:38:22,308 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:38:22,309 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:38:22,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1513154580, now seen corresponding path program 1 times [2018-09-14 17:38:22,309 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:38:22,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:22,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:22,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:22,311 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:38:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-14 17:38:22,786 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:38:22,786 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:38:22,786 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:38:22,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:38:22,787 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:38:22,787 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:38:22,788 INFO L87 Difference]: Start difference. First operand 70143 states and 97331 transitions. Second operand 4 states. [2018-09-14 17:38:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:38:42,049 INFO L93 Difference]: Finished difference Result 148563 states and 215618 transitions. [2018-09-14 17:38:42,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:38:42,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 345 [2018-09-14 17:38:42,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:38:42,486 INFO L225 Difference]: With dead ends: 148563 [2018-09-14 17:38:42,486 INFO L226 Difference]: Without dead ends: 89944 [2018-09-14 17:38:42,679 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:38:42,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89944 states. [2018-09-14 17:38:44,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89944 to 89916. [2018-09-14 17:38:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89916 states. [2018-09-14 17:38:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89916 states to 89916 states and 126567 transitions. [2018-09-14 17:38:44,956 INFO L78 Accepts]: Start accepts. Automaton has 89916 states and 126567 transitions. Word has length 345 [2018-09-14 17:38:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:38:44,957 INFO L480 AbstractCegarLoop]: Abstraction has 89916 states and 126567 transitions. [2018-09-14 17:38:44,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:38:44,957 INFO L276 IsEmpty]: Start isEmpty. Operand 89916 states and 126567 transitions. [2018-09-14 17:38:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2018-09-14 17:38:45,032 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:38:45,032 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:38:45,032 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:38:45,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1013230609, now seen corresponding path program 1 times [2018-09-14 17:38:45,033 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:38:45,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:45,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:38:45,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:38:45,034 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:38:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:38:46,812 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-14 17:38:46,812 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:38:46,812 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:38:46,813 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:38:46,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:38:46,814 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:38:46,814 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:38:46,814 INFO L87 Difference]: Start difference. First operand 89916 states and 126567 transitions. Second operand 4 states. [2018-09-14 17:39:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:39:07,282 INFO L93 Difference]: Finished difference Result 293002 states and 433862 transitions. [2018-09-14 17:39:07,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:39:07,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 388 [2018-09-14 17:39:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:39:08,394 INFO L225 Difference]: With dead ends: 293002 [2018-09-14 17:39:08,395 INFO L226 Difference]: Without dead ends: 203097 [2018-09-14 17:39:08,719 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:39:08,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203097 states. Received shutdown request... [2018-09-14 17:39:10,263 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:39:10,267 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:39:10,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:39:10 BoogieIcfgContainer [2018-09-14 17:39:10,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:39:10,268 INFO L168 Benchmark]: Toolchain (without parser) took 224442.97 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -373.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-14 17:39:10,269 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. [2018-09-14 17:39:10,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2720.61 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: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-09-14 17:39:10,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 385.08 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 17:39:10,271 INFO L168 Benchmark]: Boogie Preprocessor took 1263.70 ms. Allocated memory was 1.5 GB in the beginning and 2.6 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. [2018-09-14 17:39:10,273 INFO L168 Benchmark]: RCFGBuilder took 12149.67 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 146.3 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 9.7 MB). Peak memory consumption was 740.4 MB. Max. memory is 7.1 GB. [2018-09-14 17:39:10,274 INFO L168 Benchmark]: TraceAbstraction took 207917.52 ms. Allocated memory was 2.7 GB in the beginning and 3.4 GB in the end (delta: 680.5 MB). Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 563.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-14 17:39:10,279 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 2720.61 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: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 385.08 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 1263.70 ms. Allocated memory was 1.5 GB in the beginning and 2.6 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 12149.67 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 146.3 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 9.7 MB). Peak memory consumption was 740.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207917.52 ms. Allocated memory was 2.7 GB in the beginning and 3.4 GB in the end (delta: 680.5 MB). Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 563.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 207.8s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 181.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9073 SDtfs, 41244 SDslu, 5978 SDs, 0 SdLazy, 70503 SolverSat, 15726 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 147.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2394 GetRequests, 2273 SyntacticMatches, 12 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89916occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 13.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 4747 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 3553 NumberOfCodeBlocks, 3553 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 4660 ConstructedInterpolants, 0 QuantifiedInterpolants, 4047312 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2003 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 2087/2298 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_label53_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-39-10-299.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label53_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-39-10-299.csv Completed graceful shutdown