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/Problem11_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:39:36,334 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:39:36,336 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:39:36,357 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:39:36,357 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:39:36,359 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:39:36,363 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:39:36,367 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:39:36,370 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:39:36,371 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:39:36,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:39:36,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:39:36,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:39:36,378 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:39:36,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:39:36,382 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:39:36,385 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:39:36,387 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:39:36,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:39:36,403 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:39:36,405 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:39:36,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:39:36,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:39:36,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:39:36,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:39:36,410 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:39:36,411 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:39:36,412 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:39:36,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:39:36,413 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:39:36,414 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:39:36,414 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:39:36,415 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:39:36,415 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:39:36,416 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:39:36,417 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:39:36,417 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 [2018-09-10 11:39:36,436 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:39:36,437 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:39:36,438 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:39:36,438 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:39:36,438 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:39:36,438 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:39:36,439 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:39:36,439 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:39:36,439 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:39:36,439 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:39:36,439 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:39:36,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:39:36,440 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:39:36,441 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:39:36,441 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:39:36,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:39:36,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:39:36,442 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:39:36,442 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:39:36,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:39:36,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:39:36,443 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:39:36,443 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:39:36,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:39:36,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:39:36,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:39:36,444 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:39:36,444 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:39:36,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:39:36,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:39:36,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:39:36,445 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:39:36,445 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:39:36,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:39:36,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:39:36,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:39:36,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:39:36,525 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:39:36,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label52_true-unreach-call.c [2018-09-10 11:39:36,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba9f6e25/fc91d6ceb2eb4c1cbf8dc231fb21725a/FLAG4abc07f61 [2018-09-10 11:39:37,251 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:39:37,252 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label52_true-unreach-call.c [2018-09-10 11:39:37,276 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba9f6e25/fc91d6ceb2eb4c1cbf8dc231fb21725a/FLAG4abc07f61 [2018-09-10 11:39:37,302 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba9f6e25/fc91d6ceb2eb4c1cbf8dc231fb21725a [2018-09-10 11:39:37,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:39:37,321 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:39:37,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:39:37,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:39:37,334 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:39:37,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:39:37" (1/1) ... [2018-09-10 11:39:37,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e80f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:37, skipping insertion in model container [2018-09-10 11:39:37,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:39:37" (1/1) ... [2018-09-10 11:39:37,619 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:39:38,046 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:39:38,064 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:39:38,237 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:39:38,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38 WrapperNode [2018-09-10 11:39:38,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:39:38,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:39:38,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:39:38,315 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:39:38,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:39:38,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:39:38,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:39:38,512 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:39:38,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (1/1) ... [2018-09-10 11:39:38,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:39:38,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:39:38,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:39:38,883 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:39:38,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (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 [2018-09-10 11:39:38,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:39:38,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:39:38,958 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:39:38,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:39:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:39:38,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:39:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:39:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:39:44,320 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:39:44,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:39:44 BoogieIcfgContainer [2018-09-10 11:39:44,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:39:44,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:39:44,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:39:44,326 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:39:44,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:39:37" (1/3) ... [2018-09-10 11:39:44,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28166312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:39:44, skipping insertion in model container [2018-09-10 11:39:44,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:39:38" (2/3) ... [2018-09-10 11:39:44,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28166312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:39:44, skipping insertion in model container [2018-09-10 11:39:44,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:39:44" (3/3) ... [2018-09-10 11:39:44,332 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label52_true-unreach-call.c [2018-09-10 11:39:44,343 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:39:44,356 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:39:44,413 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:39:44,414 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:39:44,414 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:39:44,414 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:39:44,414 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:39:44,414 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:39:44,415 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:39:44,415 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:39:44,415 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:39:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-10 11:39:44,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-10 11:39:44,458 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:44,459 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] [2018-09-10 11:39:44,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash -684847423, now seen corresponding path program 1 times [2018-09-10 11:39:44,467 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:44,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:44,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:44,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:44,515 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:44,974 WARN L175 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:39:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:39:45,009 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:39:45,009 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:39:45,009 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:39:45,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:39:45,031 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:39:45,031 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:39:45,034 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-09-10 11:39:47,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:47,728 INFO L93 Difference]: Finished difference Result 790 states and 1382 transitions. [2018-09-10 11:39:47,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:39:47,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-09-10 11:39:47,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:47,753 INFO L225 Difference]: With dead ends: 790 [2018-09-10 11:39:47,753 INFO L226 Difference]: Without dead ends: 495 [2018-09-10 11:39:47,768 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 [2018-09-10 11:39:47,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-10 11:39:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 488. [2018-09-10 11:39:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-09-10 11:39:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 849 transitions. [2018-09-10 11:39:47,865 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 849 transitions. Word has length 59 [2018-09-10 11:39:47,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:47,866 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 849 transitions. [2018-09-10 11:39:47,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:39:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 849 transitions. [2018-09-10 11:39:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-10 11:39:47,876 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:47,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:39:47,877 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:47,877 INFO L82 PathProgramCache]: Analyzing trace with hash 788418208, now seen corresponding path program 1 times [2018-09-10 11:39:47,877 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:47,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:47,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:47,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:47,879 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:39:48,157 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:39:48,157 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:39:48,157 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:39:48,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:39:48,161 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:39:48,161 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:39:48,161 INFO L87 Difference]: Start difference. First operand 488 states and 849 transitions. Second operand 5 states. [2018-09-10 11:39:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:53,763 INFO L93 Difference]: Finished difference Result 1731 states and 3162 transitions. [2018-09-10 11:39:53,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:39:53,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-09-10 11:39:53,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:53,779 INFO L225 Difference]: With dead ends: 1731 [2018-09-10 11:39:53,780 INFO L226 Difference]: Without dead ends: 1249 [2018-09-10 11:39:53,785 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:39:53,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2018-09-10 11:39:53,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1032. [2018-09-10 11:39:53,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2018-09-10 11:39:53,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1658 transitions. [2018-09-10 11:39:53,875 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1658 transitions. Word has length 135 [2018-09-10 11:39:53,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:53,876 INFO L480 AbstractCegarLoop]: Abstraction has 1032 states and 1658 transitions. [2018-09-10 11:39:53,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:39:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1658 transitions. [2018-09-10 11:39:53,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-10 11:39:53,888 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:53,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:39:53,889 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:53,889 INFO L82 PathProgramCache]: Analyzing trace with hash 167245263, now seen corresponding path program 1 times [2018-09-10 11:39:53,889 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:53,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:53,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:53,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:53,892 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:54,263 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:39:54,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:39:54,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:39:54,264 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:39:54,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:39:54,265 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:39:54,265 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:39:54,266 INFO L87 Difference]: Start difference. First operand 1032 states and 1658 transitions. Second operand 6 states. [2018-09-10 11:39:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:59,678 INFO L93 Difference]: Finished difference Result 3996 states and 6919 transitions. [2018-09-10 11:39:59,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 11:39:59,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-09-10 11:39:59,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:59,706 INFO L225 Difference]: With dead ends: 3996 [2018-09-10 11:39:59,707 INFO L226 Difference]: Without dead ends: 2970 [2018-09-10 11:39:59,722 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 11:39:59,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2018-09-10 11:39:59,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2909. [2018-09-10 11:39:59,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2909 states. [2018-09-10 11:39:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4228 transitions. [2018-09-10 11:39:59,848 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4228 transitions. Word has length 146 [2018-09-10 11:39:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:59,849 INFO L480 AbstractCegarLoop]: Abstraction has 2909 states and 4228 transitions. [2018-09-10 11:39:59,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:39:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4228 transitions. [2018-09-10 11:39:59,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-09-10 11:39:59,855 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:59,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:39:59,855 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:59,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2059396069, now seen corresponding path program 1 times [2018-09-10 11:39:59,856 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:59,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:59,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:59,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:59,857 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:00,786 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:00,787 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 [2018-09-10 11:40:00,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:00,807 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:00,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:01,229 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:01,774 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:40:01,775 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-10 11:40:01,775 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:40:01,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:40:01,777 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:40:01,777 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:40:01,777 INFO L87 Difference]: Start difference. First operand 2909 states and 4228 transitions. Second operand 3 states. [2018-09-10 11:40:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:40:04,902 INFO L93 Difference]: Finished difference Result 6626 states and 10031 transitions. [2018-09-10 11:40:04,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:40:04,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2018-09-10 11:40:04,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:40:04,927 INFO L225 Difference]: With dead ends: 6626 [2018-09-10 11:40:04,927 INFO L226 Difference]: Without dead ends: 3723 [2018-09-10 11:40:04,946 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 382 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:40:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2018-09-10 11:40:05,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3525. [2018-09-10 11:40:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3525 states. [2018-09-10 11:40:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 5147 transitions. [2018-09-10 11:40:05,046 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 5147 transitions. Word has length 191 [2018-09-10 11:40:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:40:05,047 INFO L480 AbstractCegarLoop]: Abstraction has 3525 states and 5147 transitions. [2018-09-10 11:40:05,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:40:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 5147 transitions. [2018-09-10 11:40:05,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-10 11:40:05,054 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:40:05,054 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, 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] [2018-09-10 11:40:05,055 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:40:05,055 INFO L82 PathProgramCache]: Analyzing trace with hash -558733758, now seen corresponding path program 1 times [2018-09-10 11:40:05,055 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:40:05,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:05,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:05,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:05,058 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:40:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:05,392 WARN L175 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:40:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:40:05,689 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:05,689 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 [2018-09-10 11:40:05,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:05,703 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:05,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-10 11:40:05,913 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:40:06,200 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:40:06,201 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-10 11:40:06,201 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:40:06,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:40:06,202 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:40:06,203 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:40:06,203 INFO L87 Difference]: Start difference. First operand 3525 states and 5147 transitions. Second operand 5 states. [2018-09-10 11:40:11,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:40:11,730 INFO L93 Difference]: Finished difference Result 11370 states and 17541 transitions. [2018-09-10 11:40:11,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:40:11,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-09-10 11:40:11,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:40:11,787 INFO L225 Difference]: With dead ends: 11370 [2018-09-10 11:40:11,787 INFO L226 Difference]: Without dead ends: 7851 [2018-09-10 11:40:11,817 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-10 11:40:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7851 states. [2018-09-10 11:40:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7851 to 7741. [2018-09-10 11:40:12,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7741 states. [2018-09-10 11:40:12,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7741 states to 7741 states and 11195 transitions. [2018-09-10 11:40:12,097 INFO L78 Accepts]: Start accepts. Automaton has 7741 states and 11195 transitions. Word has length 216 [2018-09-10 11:40:12,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:40:12,097 INFO L480 AbstractCegarLoop]: Abstraction has 7741 states and 11195 transitions. [2018-09-10 11:40:12,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:40:12,098 INFO L276 IsEmpty]: Start isEmpty. Operand 7741 states and 11195 transitions. [2018-09-10 11:40:12,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-10 11:40:12,111 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:40:12,112 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, 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] [2018-09-10 11:40:12,112 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:40:12,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1790586155, now seen corresponding path program 1 times [2018-09-10 11:40:12,113 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:40:12,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:12,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:12,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:12,114 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:40:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:12,437 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:12,438 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 [2018-09-10 11:40:12,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:12,451 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:12,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:40:12,645 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:12,839 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:40:12,861 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:40:12,861 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-10 11:40:12,861 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:40:12,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:40:12,862 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:40:12,862 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:40:12,866 INFO L87 Difference]: Start difference. First operand 7741 states and 11195 transitions. Second operand 3 states. [2018-09-10 11:40:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:40:14,663 INFO L93 Difference]: Finished difference Result 20460 states and 31279 transitions. [2018-09-10 11:40:14,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:40:14,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2018-09-10 11:40:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:40:14,737 INFO L225 Difference]: With dead ends: 20460 [2018-09-10 11:40:14,737 INFO L226 Difference]: Without dead ends: 12725 [2018-09-10 11:40:14,788 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:40:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12725 states. [2018-09-10 11:40:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12725 to 12531. [2018-09-10 11:40:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12531 states. [2018-09-10 11:40:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12531 states to 12531 states and 17861 transitions. [2018-09-10 11:40:15,145 INFO L78 Accepts]: Start accepts. Automaton has 12531 states and 17861 transitions. Word has length 217 [2018-09-10 11:40:15,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:40:15,145 INFO L480 AbstractCegarLoop]: Abstraction has 12531 states and 17861 transitions. [2018-09-10 11:40:15,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:40:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand 12531 states and 17861 transitions. [2018-09-10 11:40:15,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-09-10 11:40:15,165 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:40:15,165 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, 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] [2018-09-10 11:40:15,166 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:40:15,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1163374894, now seen corresponding path program 1 times [2018-09-10 11:40:15,166 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:40:15,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:15,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:15,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:15,167 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:40:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 11:40:15,416 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:40:15,416 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:40:15,416 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:40:15,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:40:15,417 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:40:15,417 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:40:15,417 INFO L87 Difference]: Start difference. First operand 12531 states and 17861 transitions. Second operand 3 states. [2018-09-10 11:40:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:40:17,612 INFO L93 Difference]: Finished difference Result 26883 states and 40223 transitions. [2018-09-10 11:40:17,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:40:17,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2018-09-10 11:40:17,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:40:17,685 INFO L225 Difference]: With dead ends: 26883 [2018-09-10 11:40:17,686 INFO L226 Difference]: Without dead ends: 14358 [2018-09-10 11:40:17,740 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 [2018-09-10 11:40:17,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14358 states. [2018-09-10 11:40:18,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14358 to 14356. [2018-09-10 11:40:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14356 states. [2018-09-10 11:40:18,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14356 states to 14356 states and 20497 transitions. [2018-09-10 11:40:18,130 INFO L78 Accepts]: Start accepts. Automaton has 14356 states and 20497 transitions. Word has length 222 [2018-09-10 11:40:18,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:40:18,130 INFO L480 AbstractCegarLoop]: Abstraction has 14356 states and 20497 transitions. [2018-09-10 11:40:18,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:40:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 14356 states and 20497 transitions. [2018-09-10 11:40:18,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-09-10 11:40:18,168 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:40:18,168 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, 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] [2018-09-10 11:40:18,168 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:40:18,169 INFO L82 PathProgramCache]: Analyzing trace with hash 985491209, now seen corresponding path program 1 times [2018-09-10 11:40:18,169 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:40:18,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:18,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:18,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:18,170 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:40:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:18,693 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:18,693 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 [2018-09-10 11:40:18,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:18,701 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:18,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:19,404 WARN L175 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-10 11:40:19,853 WARN L175 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 11 [2018-09-10 11:40:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:20,011 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:20,570 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:20,571 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:40:20,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:20,589 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:20,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 105 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:20,976 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:21,315 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:40:21,316 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 7, 5] total 19 [2018-09-10 11:40:21,316 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:40:21,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-10 11:40:21,317 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-10 11:40:21,317 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-09-10 11:40:21,317 INFO L87 Difference]: Start difference. First operand 14356 states and 20497 transitions. Second operand 11 states. [2018-09-10 11:40:30,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:40:30,415 INFO L93 Difference]: Finished difference Result 33206 states and 51376 transitions. [2018-09-10 11:40:30,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-09-10 11:40:30,416 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 257 [2018-09-10 11:40:30,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:40:30,502 INFO L225 Difference]: With dead ends: 33206 [2018-09-10 11:40:30,502 INFO L226 Difference]: Without dead ends: 17114 [2018-09-10 11:40:30,794 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1024 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=597, Invalid=1953, Unknown=0, NotChecked=0, Total=2550 [2018-09-10 11:40:30,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17114 states. [2018-09-10 11:40:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17114 to 16132. [2018-09-10 11:40:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16132 states. [2018-09-10 11:40:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16132 states to 16132 states and 20157 transitions. [2018-09-10 11:40:31,169 INFO L78 Accepts]: Start accepts. Automaton has 16132 states and 20157 transitions. Word has length 257 [2018-09-10 11:40:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:40:31,170 INFO L480 AbstractCegarLoop]: Abstraction has 16132 states and 20157 transitions. [2018-09-10 11:40:31,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-10 11:40:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 16132 states and 20157 transitions. [2018-09-10 11:40:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-09-10 11:40:31,215 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:40:31,215 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:40:31,215 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:40:31,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1202515472, now seen corresponding path program 1 times [2018-09-10 11:40:31,216 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:40:31,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:31,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:31,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:31,217 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:40:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:31,832 WARN L175 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-10 11:40:32,300 WARN L175 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-09-10 11:40:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 104 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:40:32,412 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:32,412 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:40:32,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:32,420 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:32,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-10 11:40:33,065 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:33,556 WARN L175 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-10 11:40:33,844 WARN L175 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-10 11:40:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 104 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:40:34,249 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:40:34,250 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 11 [2018-09-10 11:40:34,250 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:40:34,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:40:34,251 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:40:34,252 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:40:34,252 INFO L87 Difference]: Start difference. First operand 16132 states and 20157 transitions. Second operand 5 states. [2018-09-10 11:40:37,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:40:37,133 INFO L93 Difference]: Finished difference Result 33811 states and 42197 transitions. [2018-09-10 11:40:37,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:40:37,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 300 [2018-09-10 11:40:37,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:40:37,190 INFO L225 Difference]: With dead ends: 33811 [2018-09-10 11:40:37,190 INFO L226 Difference]: Without dead ends: 17874 [2018-09-10 11:40:37,226 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 597 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:40:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17874 states. [2018-09-10 11:40:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17874 to 16877. [2018-09-10 11:40:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16877 states. [2018-09-10 11:40:37,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16877 states to 16877 states and 21094 transitions. [2018-09-10 11:40:37,603 INFO L78 Accepts]: Start accepts. Automaton has 16877 states and 21094 transitions. Word has length 300 [2018-09-10 11:40:37,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:40:37,603 INFO L480 AbstractCegarLoop]: Abstraction has 16877 states and 21094 transitions. [2018-09-10 11:40:37,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:40:37,603 INFO L276 IsEmpty]: Start isEmpty. Operand 16877 states and 21094 transitions. [2018-09-10 11:40:37,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-09-10 11:40:37,641 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:40:37,642 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:40:37,642 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:40:37,642 INFO L82 PathProgramCache]: Analyzing trace with hash 997672691, now seen corresponding path program 1 times [2018-09-10 11:40:37,642 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:40:37,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:37,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:37,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:37,644 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:40:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:38,608 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:38,608 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:40:38,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:38,616 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:38,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:39,422 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:39,423 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:40,360 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:40,361 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:40:40,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:40,378 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:40,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:40:40,881 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:40,881 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:41,010 WARN L175 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-10 11:40:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:41,368 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:40:41,369 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 8, 5, 5] total 25 [2018-09-10 11:40:41,369 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:40:41,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-10 11:40:41,370 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-10 11:40:41,370 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2018-09-10 11:40:41,370 INFO L87 Difference]: Start difference. First operand 16877 states and 21094 transitions. Second operand 15 states. [2018-09-10 11:40:41,519 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-09-10 11:40:42,096 WARN L175 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-09-10 11:40:43,698 WARN L175 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2018-09-10 11:40:46,841 WARN L175 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-09-10 11:40:46,991 WARN L175 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-09-10 11:40:47,176 WARN L175 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 31 [2018-09-10 11:40:47,311 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 30 [2018-09-10 11:40:48,798 WARN L175 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2018-09-10 11:40:50,337 WARN L175 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-09-10 11:40:50,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:40:50,828 INFO L93 Difference]: Finished difference Result 36910 states and 46560 transitions. [2018-09-10 11:40:50,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-10 11:40:50,832 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 343 [2018-09-10 11:40:50,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:40:50,888 INFO L225 Difference]: With dead ends: 36910 [2018-09-10 11:40:50,888 INFO L226 Difference]: Without dead ends: 20228 [2018-09-10 11:40:50,934 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1415 GetRequests, 1362 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=682, Invalid=2074, Unknown=0, NotChecked=0, Total=2756 [2018-09-10 11:40:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20228 states. [2018-09-10 11:40:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20228 to 18694. [2018-09-10 11:40:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18694 states. [2018-09-10 11:40:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18694 states to 18694 states and 22625 transitions. [2018-09-10 11:40:51,315 INFO L78 Accepts]: Start accepts. Automaton has 18694 states and 22625 transitions. Word has length 343 [2018-09-10 11:40:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:40:51,315 INFO L480 AbstractCegarLoop]: Abstraction has 18694 states and 22625 transitions. [2018-09-10 11:40:51,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-10 11:40:51,316 INFO L276 IsEmpty]: Start isEmpty. Operand 18694 states and 22625 transitions. [2018-09-10 11:40:51,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-09-10 11:40:51,344 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:40:51,344 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:40:51,344 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:40:51,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1470194130, now seen corresponding path program 1 times [2018-09-10 11:40:51,345 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:40:51,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:51,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:51,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:40:51,346 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:40:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 5 proven. 106 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-09-10 11:40:52,626 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:40:52,626 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:40:52,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:40:52,643 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:40:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:40:52,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:41:08,515 WARN L175 SmtUtils]: Spent 7.69 s on a formula simplification. DAG size of input: 37 DAG size of output: 15 [2018-09-10 11:41:09,248 WARN L1032 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 Int)) (let ((.cse0 (+ v_prenex_1 69157))) (and (<= 0 .cse0) (<= 130 v_prenex_1) (<= c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0 (+ (mod .cse0 299861) 300138))))) is different from true [2018-09-10 11:41:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 241 refuted. 2 times theorem prover too weak. 0 trivial. 9 not checked. [2018-09-10 11:41:10,305 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:41:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 250 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:41:10,676 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:41:10,676 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 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:41:10,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:41:10,692 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:41:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:41:11,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:41:11,435 WARN L175 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2018-09-10 11:41:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 5 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:41:13,780 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:41:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 250 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:41:14,261 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:41:14,261 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 6, 9, 6] total 20 [2018-09-10 11:41:14,261 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:41:14,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-10 11:41:14,262 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-10 11:41:14,262 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=241, Unknown=6, NotChecked=34, Total=380 [2018-09-10 11:41:14,263 INFO L87 Difference]: Start difference. First operand 18694 states and 22625 transitions. Second operand 13 states. [2018-09-10 11:41:15,074 WARN L175 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-10 11:41:17,345 WARN L175 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 18 [2018-09-10 11:41:34,040 WARN L175 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 17 [2018-09-10 11:41:59,671 WARN L175 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-09-10 11:42:33,218 WARN L175 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 19 [2018-09-10 11:43:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:43:24,832 INFO L93 Difference]: Finished difference Result 55423 states and 73665 transitions. [2018-09-10 11:43:24,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-09-10 11:43:24,834 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 374 [2018-09-10 11:43:24,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:43:24,977 INFO L225 Difference]: With dead ends: 55423 [2018-09-10 11:43:24,978 INFO L226 Difference]: Without dead ends: 36105 [2018-09-10 11:43:25,057 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1534 GetRequests, 1481 SyntacticMatches, 14 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 42.1s TimeCoverageRelationStatistics Valid=399, Invalid=1152, Unknown=13, NotChecked=76, Total=1640 [2018-09-10 11:43:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36105 states. [2018-09-10 11:43:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36105 to 35526. [2018-09-10 11:43:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35526 states. [2018-09-10 11:43:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35526 states to 35526 states and 43932 transitions. [2018-09-10 11:43:26,208 INFO L78 Accepts]: Start accepts. Automaton has 35526 states and 43932 transitions. Word has length 374 [2018-09-10 11:43:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:43:26,209 INFO L480 AbstractCegarLoop]: Abstraction has 35526 states and 43932 transitions. [2018-09-10 11:43:26,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-10 11:43:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 35526 states and 43932 transitions. [2018-09-10 11:43:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-09-10 11:43:26,264 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:43:26,264 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:43:26,264 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:43:26,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1221459068, now seen corresponding path program 1 times [2018-09-10 11:43:26,265 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:43:26,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:43:26,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:43:26,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:43:26,266 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:43:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:43:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 275 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:43:27,774 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:43:27,775 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:43:27,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:43:27,783 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:43:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:43:27,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:43:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 341 proven. 109 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-10 11:43:28,606 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:43:28,879 WARN L175 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-09-10 11:43:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 162 proven. 336 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:43:30,263 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:43:30,263 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 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:43:30,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:43:30,279 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:43:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:43:30,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:43:31,364 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 341 proven. 109 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-10 11:43:31,364 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:43:31,569 WARN L175 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-09-10 11:43:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 269 proven. 109 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-10 11:43:32,427 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:43:32,427 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 8, 8, 5] total 37 [2018-09-10 11:43:32,427 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:43:32,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-09-10 11:43:32,429 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-09-10 11:43:32,430 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1196, Unknown=0, NotChecked=0, Total=1332 [2018-09-10 11:43:32,430 INFO L87 Difference]: Start difference. First operand 35526 states and 43932 transitions. Second operand 25 states. [2018-09-10 11:43:33,991 WARN L175 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2018-09-10 11:43:35,927 WARN L175 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2018-09-10 11:43:38,099 WARN L175 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2018-09-10 11:43:38,814 WARN L175 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-09-10 11:43:39,826 WARN L175 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2018-09-10 11:43:42,996 WARN L175 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2018-09-10 11:43:43,161 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-09-10 11:43:43,722 WARN L175 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-09-10 11:43:45,334 WARN L175 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-09-10 11:43:46,593 WARN L175 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2018-09-10 11:43:46,895 WARN L175 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-09-10 11:43:47,233 WARN L175 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2018-09-10 11:43:48,815 WARN L175 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 Received shutdown request... [2018-09-10 11:43:51,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-09-10 11:43:51,833 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:43:51,839 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:43:51,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:43:51 BoogieIcfgContainer [2018-09-10 11:43:51,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:43:51,841 INFO L168 Benchmark]: Toolchain (without parser) took 254524.87 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-10 11:43:51,842 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-10 11:43:51,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 987.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-09-10 11:43:51,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 196.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-10 11:43:51,843 INFO L168 Benchmark]: Boogie Preprocessor took 370.85 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -955.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. [2018-09-10 11:43:51,844 INFO L168 Benchmark]: RCFGBuilder took 5439.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 195.4 MB). Peak memory consumption was 195.4 MB. Max. memory is 7.1 GB. [2018-09-10 11:43:51,845 INFO L168 Benchmark]: TraceAbstraction took 247517.05 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -123.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-10 11:43:51,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 987.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 196.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 370.85 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -955.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5439.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 195.4 MB). Peak memory consumption was 195.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247517.05 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -123.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 162). Cancelled while BasicCegarLoop was constructing difference of abstraction (35526states) and FLOYD_HOARE automaton (currently 57 states, 25 states before enhancement), while ReachableStatesComputation was computing reachable states (2734 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 247.4s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 199.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2499 SDtfs, 20884 SDslu, 2933 SDs, 0 SdLazy, 27101 SolverSat, 7267 SolverUnsat, 48 SolverUnknown, 0 SolverNotchecked, 155.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7875 GetRequests, 7560 SyntacticMatches, 34 SemanticMatches, 281 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3762 ImplicationChecksByTransitivity, 61.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35526occurred in iteration=11, 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: 3.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 4881 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 39.3s InterpolantComputationTime, 6721 NumberOfCodeBlocks, 6721 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 10483 ConstructedInterpolants, 14 QuantifiedInterpolants, 26919534 SizeOfPredicates, 37 NumberOfNonLiveVariables, 6308 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 36 InterpolantComputations, 10 PerfectInterpolantSequences, 5935/7808 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/Problem11_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-43-51-862.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-43-51-862.csv Completed graceful shutdown