java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:18:22,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:18:22,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:18:22,336 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:18:22,337 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:18:22,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:18:22,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:18:22,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:18:22,345 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:18:22,348 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:18:22,350 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:18:22,350 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:18:22,352 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:18:22,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:18:22,354 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:18:22,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:18:22,356 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:18:22,358 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:18:22,360 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:18:22,362 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:18:22,363 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:18:22,364 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:18:22,367 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:18:22,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:18:22,367 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:18:22,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:18:22,369 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:18:22,370 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:18:22,371 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:18:22,375 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:18:22,375 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:18:22,376 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:18:22,376 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:18:22,377 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:18:22,378 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:18:22,378 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:18:22,379 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 17:18:22,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:18:22,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:18:22,415 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:18:22,415 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:18:22,415 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:18:22,416 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:18:22,416 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:18:22,416 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:18:22,416 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:18:22,417 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:18:22,417 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:18:22,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:18:22,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:18:22,418 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:18:22,418 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:18:22,418 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:18:22,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:18:22,419 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:18:22,419 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:18:22,419 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:18:22,419 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:18:22,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:18:22,420 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:18:22,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:18:22,420 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:18:22,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:18:22,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:18:22,421 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:18:22,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:18:22,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:18:22,422 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:18:22,422 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:18:22,422 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:18:22,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:18:22,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:18:22,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:18:22,510 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:18:22,510 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:18:22,511 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-09-14 17:18:22,867 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ff479fd/2de2b1882b644e4d9a4ec2e148e63a8e/FLAG1de6e24c2 [2018-09-14 17:18:23,352 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:18:23,353 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-09-14 17:18:23,381 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ff479fd/2de2b1882b644e4d9a4ec2e148e63a8e/FLAG1de6e24c2 [2018-09-14 17:18:23,398 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ff479fd/2de2b1882b644e4d9a4ec2e148e63a8e [2018-09-14 17:18:23,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:18:23,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:18:23,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:18:23,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:18:23,422 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:18:23,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:18:23" (1/1) ... [2018-09-14 17:18:23,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:23, skipping insertion in model container [2018-09-14 17:18:23,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:18:23" (1/1) ... [2018-09-14 17:18:23,440 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:18:24,700 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:18:24,721 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:18:25,358 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:18:25,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25 WrapperNode [2018-09-14 17:18:25,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:18:25,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:18:25,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:18:25,640 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:18:25,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:25,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:25,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:18:25,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:18:25,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:18:25,898 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:18:26,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:26,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:26,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:26,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:26,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:26,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:26,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (1/1) ... [2018-09-14 17:18:26,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:18:26,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:18:26,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:18:26,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:18:26,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (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 17:18:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:18:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:18:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:18:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:18:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:18:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:18:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:18:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:18:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:18:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:18:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:18:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:18:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:18:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:18:39,027 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:18:39,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:18:39 BoogieIcfgContainer [2018-09-14 17:18:39,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:18:39,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:18:39,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:18:39,032 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:18:39,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:18:23" (1/3) ... [2018-09-14 17:18:39,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:18:39, skipping insertion in model container [2018-09-14 17:18:39,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:18:25" (2/3) ... [2018-09-14 17:18:39,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:18:39, skipping insertion in model container [2018-09-14 17:18:39,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:18:39" (3/3) ... [2018-09-14 17:18:39,036 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04_true-unreach-call.c [2018-09-14 17:18:39,047 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:18:39,057 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:18:39,121 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:18:39,122 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:18:39,122 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:18:39,123 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:18:39,123 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:18:39,123 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:18:39,123 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:18:39,123 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:18:39,123 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:18:39,164 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-14 17:18:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-14 17:18:39,175 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:18:39,176 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] [2018-09-14 17:18:39,177 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:18:39,181 INFO L82 PathProgramCache]: Analyzing trace with hash -629755477, now seen corresponding path program 1 times [2018-09-14 17:18:39,184 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:18:39,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:18:39,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:18:39,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:18:39,229 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:18:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:18:39,730 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 17:18:39,733 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:18:39,733 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:18:39,733 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:18:39,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:18:39,758 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:18:39,759 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:18:39,762 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-09-14 17:18:51,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:18:51,051 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-09-14 17:18:51,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:18:51,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-09-14 17:18:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:18:51,104 INFO L225 Difference]: With dead ends: 2446 [2018-09-14 17:18:51,104 INFO L226 Difference]: Without dead ends: 1604 [2018-09-14 17:18:51,120 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:18:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-09-14 17:18:51,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-09-14 17:18:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-14 17:18:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3021 transitions. [2018-09-14 17:18:51,344 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3021 transitions. Word has length 67 [2018-09-14 17:18:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:18:51,345 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 3021 transitions. [2018-09-14 17:18:51,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:18:51,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3021 transitions. [2018-09-14 17:18:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-14 17:18:51,357 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:18:51,358 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, 1, 1, 1, 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 17:18:51,360 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:18:51,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1436302644, now seen corresponding path program 1 times [2018-09-14 17:18:51,361 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:18:51,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:18:51,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:18:51,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:18:51,362 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:18:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:18:51,739 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:18:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:18:51,820 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:18:51,820 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:18:51,820 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:18:51,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:18:51,823 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:18:51,823 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:18:51,823 INFO L87 Difference]: Start difference. First operand 1604 states and 3021 transitions. Second operand 6 states. [2018-09-14 17:19:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:19:08,534 INFO L93 Difference]: Finished difference Result 6336 states and 12138 transitions. [2018-09-14 17:19:08,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:19:08,535 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-09-14 17:19:08,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:19:08,567 INFO L225 Difference]: With dead ends: 6336 [2018-09-14 17:19:08,567 INFO L226 Difference]: Without dead ends: 4738 [2018-09-14 17:19:08,577 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 17:19:08,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2018-09-14 17:19:08,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 4703. [2018-09-14 17:19:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4703 states. [2018-09-14 17:19:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4703 states to 4703 states and 7682 transitions. [2018-09-14 17:19:08,727 INFO L78 Accepts]: Start accepts. Automaton has 4703 states and 7682 transitions. Word has length 145 [2018-09-14 17:19:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:19:08,727 INFO L480 AbstractCegarLoop]: Abstraction has 4703 states and 7682 transitions. [2018-09-14 17:19:08,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:19:08,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4703 states and 7682 transitions. [2018-09-14 17:19:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-14 17:19:08,842 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:19:08,843 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 17:19:08,843 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:19:08,843 INFO L82 PathProgramCache]: Analyzing trace with hash -659539728, now seen corresponding path program 1 times [2018-09-14 17:19:08,843 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:19:08,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:08,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:19:08,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:08,845 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:19:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:19:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:19:09,066 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:19:09,066 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:19:09,066 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:19:09,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:19:09,067 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:19:09,067 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:19:09,068 INFO L87 Difference]: Start difference. First operand 4703 states and 7682 transitions. Second operand 5 states. [2018-09-14 17:19:20,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:19:20,960 INFO L93 Difference]: Finished difference Result 14309 states and 23694 transitions. [2018-09-14 17:19:20,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:19:20,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-09-14 17:19:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:19:21,016 INFO L225 Difference]: With dead ends: 14309 [2018-09-14 17:19:21,016 INFO L226 Difference]: Without dead ends: 9612 [2018-09-14 17:19:21,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:19:21,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9612 states. [2018-09-14 17:19:21,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9612 to 9532. [2018-09-14 17:19:21,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9532 states. [2018-09-14 17:19:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9532 states to 9532 states and 14374 transitions. [2018-09-14 17:19:21,310 INFO L78 Accepts]: Start accepts. Automaton has 9532 states and 14374 transitions. Word has length 147 [2018-09-14 17:19:21,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:19:21,311 INFO L480 AbstractCegarLoop]: Abstraction has 9532 states and 14374 transitions. [2018-09-14 17:19:21,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:19:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9532 states and 14374 transitions. [2018-09-14 17:19:21,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-09-14 17:19:21,315 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:19:21,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:21,316 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:19:21,316 INFO L82 PathProgramCache]: Analyzing trace with hash -731114027, now seen corresponding path program 1 times [2018-09-14 17:19:21,316 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:19:21,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:21,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:19:21,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:21,317 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:19:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:19:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:19:21,936 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:19:21,936 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:19:21,936 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:19:21,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:19:21,937 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:19:21,937 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:19:21,937 INFO L87 Difference]: Start difference. First operand 9532 states and 14374 transitions. Second operand 6 states. [2018-09-14 17:19:43,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:19:43,361 INFO L93 Difference]: Finished difference Result 38119 states and 61201 transitions. [2018-09-14 17:19:43,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:19:43,363 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-09-14 17:19:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:19:43,525 INFO L225 Difference]: With dead ends: 38119 [2018-09-14 17:19:43,525 INFO L226 Difference]: Without dead ends: 28593 [2018-09-14 17:19:43,598 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:19:43,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28593 states. [2018-09-14 17:19:44,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28593 to 28537. [2018-09-14 17:19:44,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28537 states. [2018-09-14 17:19:44,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28537 states to 28537 states and 41799 transitions. [2018-09-14 17:19:44,315 INFO L78 Accepts]: Start accepts. Automaton has 28537 states and 41799 transitions. Word has length 158 [2018-09-14 17:19:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:19:44,316 INFO L480 AbstractCegarLoop]: Abstraction has 28537 states and 41799 transitions. [2018-09-14 17:19:44,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:19:44,316 INFO L276 IsEmpty]: Start isEmpty. Operand 28537 states and 41799 transitions. [2018-09-14 17:19:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-09-14 17:19:44,322 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:19:44,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:44,323 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:19:44,323 INFO L82 PathProgramCache]: Analyzing trace with hash -90858887, now seen corresponding path program 1 times [2018-09-14 17:19:44,324 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:19:44,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:44,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:19:44,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:44,325 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:19:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:19:44,636 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:19:45,038 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:19:45,038 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:19:45,038 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:19:45,039 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:19:45,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:19:45,039 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:19:45,040 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:19:45,040 INFO L87 Difference]: Start difference. First operand 28537 states and 41799 transitions. Second operand 6 states. [2018-09-14 17:19:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:19:56,605 INFO L93 Difference]: Finished difference Result 79351 states and 124048 transitions. [2018-09-14 17:19:56,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:19:56,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-09-14 17:19:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:19:56,865 INFO L225 Difference]: With dead ends: 79351 [2018-09-14 17:19:56,865 INFO L226 Difference]: Without dead ends: 50820 [2018-09-14 17:19:56,972 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 17:19:57,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50820 states. [2018-09-14 17:19:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50820 to 50663. [2018-09-14 17:19:57,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50663 states. [2018-09-14 17:19:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50663 states to 50663 states and 72662 transitions. [2018-09-14 17:19:58,648 INFO L78 Accepts]: Start accepts. Automaton has 50663 states and 72662 transitions. Word has length 192 [2018-09-14 17:19:58,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:19:58,649 INFO L480 AbstractCegarLoop]: Abstraction has 50663 states and 72662 transitions. [2018-09-14 17:19:58,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:19:58,649 INFO L276 IsEmpty]: Start isEmpty. Operand 50663 states and 72662 transitions. [2018-09-14 17:19:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-09-14 17:19:58,662 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:19:58,663 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:19:58,663 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:19:58,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1240874338, now seen corresponding path program 1 times [2018-09-14 17:19:58,664 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:19:58,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:58,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:19:58,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:19:58,665 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:19:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:19:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 120 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:19:58,926 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:19:58,927 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 17:19:58,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:19:58,936 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:19:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:19:59,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:19:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-14 17:19:59,657 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:20:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 120 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:20:00,413 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:20:00,413 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:20:00,413 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:20:00,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:20:00,415 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:20:00,415 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:20:00,415 INFO L87 Difference]: Start difference. First operand 50663 states and 72662 transitions. Second operand 5 states. [2018-09-14 17:20:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:20:16,204 INFO L93 Difference]: Finished difference Result 130251 states and 199815 transitions. [2018-09-14 17:20:16,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:20:16,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2018-09-14 17:20:16,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:20:16,632 INFO L225 Difference]: With dead ends: 130251 [2018-09-14 17:20:16,632 INFO L226 Difference]: Without dead ends: 79594 [2018-09-14 17:20:16,835 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 506 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:20:16,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79594 states. [2018-09-14 17:20:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79594 to 79442. [2018-09-14 17:20:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79442 states. [2018-09-14 17:20:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79442 states to 79442 states and 115336 transitions. [2018-09-14 17:20:18,931 INFO L78 Accepts]: Start accepts. Automaton has 79442 states and 115336 transitions. Word has length 256 [2018-09-14 17:20:18,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:20:18,931 INFO L480 AbstractCegarLoop]: Abstraction has 79442 states and 115336 transitions. [2018-09-14 17:20:18,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:20:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 79442 states and 115336 transitions. [2018-09-14 17:20:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-09-14 17:20:18,955 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:20:18,956 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:20:18,956 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:20:18,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1276602628, now seen corresponding path program 1 times [2018-09-14 17:20:18,957 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:20:18,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:20:18,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:20:18,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:20:18,958 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:20:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:20:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-09-14 17:20:19,863 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:20:19,864 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:20:19,864 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:20:19,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:20:19,865 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:20:19,865 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:20:19,865 INFO L87 Difference]: Start difference. First operand 79442 states and 115336 transitions. Second operand 4 states. [2018-09-14 17:20:31,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:20:31,756 INFO L93 Difference]: Finished difference Result 259008 states and 405918 transitions. [2018-09-14 17:20:31,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:20:31,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2018-09-14 17:20:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:20:32,443 INFO L225 Difference]: With dead ends: 259008 [2018-09-14 17:20:32,444 INFO L226 Difference]: Without dead ends: 179572 [2018-09-14 17:20:32,646 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 17:20:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179572 states. [2018-09-14 17:20:36,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179572 to 176513. [2018-09-14 17:20:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176513 states. [2018-09-14 17:20:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176513 states to 176513 states and 255019 transitions. [2018-09-14 17:20:37,259 INFO L78 Accepts]: Start accepts. Automaton has 176513 states and 255019 transitions. Word has length 308 [2018-09-14 17:20:37,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:20:37,260 INFO L480 AbstractCegarLoop]: Abstraction has 176513 states and 255019 transitions. [2018-09-14 17:20:37,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:20:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 176513 states and 255019 transitions. [2018-09-14 17:20:37,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-09-14 17:20:37,292 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:20:37,292 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:20:37,293 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:20:37,293 INFO L82 PathProgramCache]: Analyzing trace with hash 788524673, now seen corresponding path program 1 times [2018-09-14 17:20:37,293 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:20:37,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:20:37,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:20:37,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:20:37,294 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:20:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:20:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 259 proven. 85 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:20:37,898 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:20:37,898 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 17:20:37,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:20:37,912 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:20:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:20:38,029 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:20:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-14 17:20:38,295 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:20:38,675 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 259 proven. 85 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:20:38,696 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:20:38,696 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:20:38,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:20:38,714 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:20:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:20:38,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:20:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-14 17:20:39,167 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:20:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 259 proven. 85 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:20:39,422 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:20:39,422 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-14 17:20:39,422 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:20:39,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:20:39,424 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:20:39,424 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:20:39,425 INFO L87 Difference]: Start difference. First operand 176513 states and 255019 transitions. Second operand 9 states. [2018-09-14 17:20:59,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:20:59,006 INFO L93 Difference]: Finished difference Result 387526 states and 632783 transitions. [2018-09-14 17:20:59,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:20:59,006 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 332 [2018-09-14 17:20:59,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:21:00,011 INFO L225 Difference]: With dead ends: 387526 [2018-09-14 17:21:00,011 INFO L226 Difference]: Without dead ends: 182856 [2018-09-14 17:21:00,416 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1324 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-09-14 17:21:00,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182856 states. [2018-09-14 17:21:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182856 to 171311. [2018-09-14 17:21:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171311 states. [2018-09-14 17:21:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171311 states to 171311 states and 246002 transitions. [2018-09-14 17:21:07,473 INFO L78 Accepts]: Start accepts. Automaton has 171311 states and 246002 transitions. Word has length 332 [2018-09-14 17:21:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:21:07,473 INFO L480 AbstractCegarLoop]: Abstraction has 171311 states and 246002 transitions. [2018-09-14 17:21:07,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:21:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 171311 states and 246002 transitions. [2018-09-14 17:21:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-09-14 17:21:07,499 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:21:07,499 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, 2, 2, 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] [2018-09-14 17:21:07,500 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:21:07,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1002181406, now seen corresponding path program 1 times [2018-09-14 17:21:07,500 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:21:07,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:21:07,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:21:07,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:21:07,501 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:21:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:21:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 120 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:21:07,825 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:21:07,825 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:21:07,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:21:07,834 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:21:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:21:07,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:21:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-14 17:21:13,878 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:21:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 120 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:21:14,176 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:21:14,176 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 17:21:14,176 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:21:14,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:21:14,177 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:21:14,177 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:21:14,178 INFO L87 Difference]: Start difference. First operand 171311 states and 246002 transitions. Second operand 5 states. [2018-09-14 17:21:24,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:21:24,414 INFO L93 Difference]: Finished difference Result 378895 states and 572930 transitions. [2018-09-14 17:21:24,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:21:24,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 352 [2018-09-14 17:21:24,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:21:25,239 INFO L225 Difference]: With dead ends: 378895 [2018-09-14 17:21:25,239 INFO L226 Difference]: Without dead ends: 207590 [2018-09-14 17:21:25,571 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 698 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:21:25,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207590 states. [2018-09-14 17:21:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207590 to 206761. [2018-09-14 17:21:29,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206761 states. [2018-09-14 17:21:30,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206761 states to 206761 states and 276674 transitions. [2018-09-14 17:21:30,312 INFO L78 Accepts]: Start accepts. Automaton has 206761 states and 276674 transitions. Word has length 352 [2018-09-14 17:21:30,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:21:30,313 INFO L480 AbstractCegarLoop]: Abstraction has 206761 states and 276674 transitions. [2018-09-14 17:21:30,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:21:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand 206761 states and 276674 transitions. [2018-09-14 17:21:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-09-14 17:21:30,359 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:21:30,359 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 17:21:30,359 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:21:30,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1902923929, now seen corresponding path program 1 times [2018-09-14 17:21:30,360 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:21:30,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:21:30,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:21:30,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:21:30,361 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:21:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:21:31,541 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2018-09-14 17:21:31,541 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:21:31,541 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:21:31,541 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:21:31,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:21:31,542 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:21:31,542 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:21:31,542 INFO L87 Difference]: Start difference. First operand 206761 states and 276674 transitions. Second operand 3 states. [2018-09-14 17:21:40,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:21:40,598 INFO L93 Difference]: Finished difference Result 419342 states and 561136 transitions. [2018-09-14 17:21:40,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:21:40,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 450 [2018-09-14 17:21:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:21:41,241 INFO L225 Difference]: With dead ends: 419342 [2018-09-14 17:21:41,241 INFO L226 Difference]: Without dead ends: 213355 [2018-09-14 17:21:41,606 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:21:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213355 states. [2018-09-14 17:21:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213355 to 201001. [2018-09-14 17:21:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201001 states. [2018-09-14 17:21:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201001 states to 201001 states and 257439 transitions. [2018-09-14 17:21:46,231 INFO L78 Accepts]: Start accepts. Automaton has 201001 states and 257439 transitions. Word has length 450 [2018-09-14 17:21:46,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:21:46,232 INFO L480 AbstractCegarLoop]: Abstraction has 201001 states and 257439 transitions. [2018-09-14 17:21:46,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:21:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 201001 states and 257439 transitions. [2018-09-14 17:21:46,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2018-09-14 17:21:46,329 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:21:46,329 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:46,330 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:21:46,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1385515826, now seen corresponding path program 1 times [2018-09-14 17:21:46,330 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:21:46,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:21:46,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:21:46,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:21:46,331 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:21:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:21:47,072 WARN L178 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2018-09-14 17:21:48,456 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 180 proven. 288 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-14 17:21:48,456 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:21:48,456 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:21:48,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:21:48,464 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:21:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:21:48,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:21:49,641 WARN L178 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-09-14 17:21:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2018-09-14 17:21:50,061 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:21:50,267 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2018-09-14 17:21:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 180 proven. 288 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-14 17:21:56,139 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:21:56,140 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:21:56,140 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:21:56,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:21:56,141 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:21:56,141 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:21:56,141 INFO L87 Difference]: Start difference. First operand 201001 states and 257439 transitions. Second operand 5 states. Received shutdown request... [2018-09-14 17:22:01,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:22:01,530 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:22:01,537 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:22:01,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:22:01 BoogieIcfgContainer [2018-09-14 17:22:01,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:22:01,538 INFO L168 Benchmark]: Toolchain (without parser) took 218127.59 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-14 17:22:01,539 INFO L168 Benchmark]: CDTParser took 0.24 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 17:22:01,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2223.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-14 17:22:01,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 258.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-14 17:22:01,541 INFO L168 Benchmark]: Boogie Preprocessor took 972.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 917.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-14 17:22:01,542 INFO L168 Benchmark]: RCFGBuilder took 12156.99 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 653.5 MB). Peak memory consumption was 653.5 MB. Max. memory is 7.1 GB. [2018-09-14 17:22:01,543 INFO L168 Benchmark]: TraceAbstraction took 202508.58 ms. Allocated memory was 2.4 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 530.4 MB. Max. memory is 7.1 GB. [2018-09-14 17:22:01,548 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 2223.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 258.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 972.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 917.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12156.99 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 653.5 MB). Peak memory consumption was 653.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202508.58 ms. Allocated memory was 2.4 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 530.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (201001states) and FLOYD_HOARE automaton (currently 7 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (55588 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 202.4s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 150.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2895 SDtfs, 29632 SDslu, 1655 SDs, 0 SdLazy, 58662 SolverSat, 13417 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 110.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3934 GetRequests, 3841 SyntacticMatches, 18 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=206761occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 26.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 28267 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 4977 NumberOfCodeBlocks, 4977 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6877 ConstructedInterpolants, 0 QuantifiedInterpolants, 13232098 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3113 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 21 InterpolantComputations, 10 PerfectInterpolantSequences, 5015/6162 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/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-22-01-567.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-22-01-567.csv Completed graceful shutdown