java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label28_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:35:23,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:35:23,314 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:35:23,330 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:35:23,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:35:23,331 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:35:23,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:35:23,334 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:35:23,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:35:23,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:35:23,337 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:35:23,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:35:23,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:35:23,339 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:35:23,341 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:35:23,341 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:35:23,342 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:35:23,345 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:35:23,349 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:35:23,351 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:35:23,355 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:35:23,356 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:35:23,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:35:23,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:35:23,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:35:23,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:35:23,363 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:35:23,364 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:35:23,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:35:23,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:35:23,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:35:23,366 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:35:23,367 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:35:23,367 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:35:23,368 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:35:23,369 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:35:23,369 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 [2018-07-24 14:35:23,384 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:35:23,384 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:35:23,385 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:35:23,385 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:35:23,385 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:35:23,386 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:35:23,386 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:35:23,386 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:35:23,386 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:35:23,386 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:35:23,387 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:35:23,387 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:35:23,387 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:35:23,388 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:35:23,388 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:35:23,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:35:23,388 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:35:23,388 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:35:23,389 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:35:23,389 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:35:23,389 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:35:23,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:35:23,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:35:23,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:35:23,390 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:35:23,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:35:23,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:35:23,390 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:35:23,391 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:35:23,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:35:23,391 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:35:23,391 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:35:23,391 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:35:23,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:35:23,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:35:23,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:35:23,459 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:35:23,460 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:35:23,460 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label28_true-unreach-call.c [2018-07-24 14:35:23,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb5c85ab/0bca7ed30c2b4b6bbfadb8cc0dcb06ed/FLAGa2b920afe [2018-07-24 14:35:24,123 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:35:24,124 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label28_true-unreach-call.c [2018-07-24 14:35:24,145 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb5c85ab/0bca7ed30c2b4b6bbfadb8cc0dcb06ed/FLAGa2b920afe [2018-07-24 14:35:24,162 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb5c85ab/0bca7ed30c2b4b6bbfadb8cc0dcb06ed [2018-07-24 14:35:24,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:35:24,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:35:24,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:35:24,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:35:24,185 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:35:24,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:35:24" (1/1) ... [2018-07-24 14:35:24,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3fd0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:24, skipping insertion in model container [2018-07-24 14:35:24,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:35:24" (1/1) ... [2018-07-24 14:35:24,456 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:35:25,077 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:35:25,094 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:35:25,415 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:35:25,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25 WrapperNode [2018-07-24 14:35:25,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:35:25,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:35:25,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:35:25,559 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:35:25,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:25,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:25,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:35:25,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:35:25,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:35:25,835 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:35:26,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:26,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:26,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:26,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:26,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:26,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:26,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... [2018-07-24 14:35:26,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:35:26,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:35:26,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:35:26,427 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:35:26,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:35:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:35:26,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:35:26,497 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 [2018-07-24 14:35:26,497 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 [2018-07-24 14:35:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:35:26,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:35:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:35:26,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:35:26,499 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_output2 [2018-07-24 14:35:26,499 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_output2 [2018-07-24 14:35:34,581 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:35:34,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:35:34 BoogieIcfgContainer [2018-07-24 14:35:34,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:35:34,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:35:34,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:35:34,587 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:35:34,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:35:24" (1/3) ... [2018-07-24 14:35:34,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49413067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:35:34, skipping insertion in model container [2018-07-24 14:35:34,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:25" (2/3) ... [2018-07-24 14:35:34,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49413067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:35:34, skipping insertion in model container [2018-07-24 14:35:34,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:35:34" (3/3) ... [2018-07-24 14:35:34,591 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label28_true-unreach-call.c [2018-07-24 14:35:34,600 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:35:34,609 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:35:34,667 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:35:34,668 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:35:34,668 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:35:34,668 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:35:34,668 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:35:34,669 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:35:34,669 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:35:34,669 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:35:34,669 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:35:34,703 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-24 14:35:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-24 14:35:34,719 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:35:34,722 INFO L353 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] [2018-07-24 14:35:34,722 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:35:34,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1268844687, now seen corresponding path program 1 times [2018-07-24 14:35:34,731 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:35:34,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:34,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:35:34,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:34,781 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:35:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:35:35,215 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:35:35,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:35:35,323 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:35:35,326 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:35:35,327 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:35:35,332 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:35:35,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:35:35,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:35:35,351 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-07-24 14:35:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:35:39,217 INFO L93 Difference]: Finished difference Result 1194 states and 2152 transitions. [2018-07-24 14:35:39,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:35:39,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-07-24 14:35:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:35:39,244 INFO L225 Difference]: With dead ends: 1194 [2018-07-24 14:35:39,245 INFO L226 Difference]: Without dead ends: 754 [2018-07-24 14:35:39,261 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:35:39,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2018-07-24 14:35:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 752. [2018-07-24 14:35:39,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-07-24 14:35:39,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1325 transitions. [2018-07-24 14:35:39,406 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1325 transitions. Word has length 39 [2018-07-24 14:35:39,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:35:39,407 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1325 transitions. [2018-07-24 14:35:39,407 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:35:39,407 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1325 transitions. [2018-07-24 14:35:39,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-24 14:35:39,416 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:35:39,420 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:35:39,420 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:35:39,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1047767181, now seen corresponding path program 1 times [2018-07-24 14:35:39,421 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:35:39,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:39,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:35:39,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:39,425 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:35:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:35:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:35:39,962 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:35:39,962 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 14:35:39,962 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:35:39,965 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 14:35:39,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 14:35:39,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:35:39,966 INFO L87 Difference]: Start difference. First operand 752 states and 1325 transitions. Second operand 7 states. [2018-07-24 14:35:40,169 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 14:35:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:35:51,816 INFO L93 Difference]: Finished difference Result 2228 states and 3960 transitions. [2018-07-24 14:35:51,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 14:35:51,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2018-07-24 14:35:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:35:51,836 INFO L225 Difference]: With dead ends: 2228 [2018-07-24 14:35:51,836 INFO L226 Difference]: Without dead ends: 1482 [2018-07-24 14:35:51,840 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:35:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2018-07-24 14:35:51,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1448. [2018-07-24 14:35:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2018-07-24 14:35:51,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2240 transitions. [2018-07-24 14:35:51,922 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2240 transitions. Word has length 113 [2018-07-24 14:35:51,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:35:51,923 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2240 transitions. [2018-07-24 14:35:51,923 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 14:35:51,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2240 transitions. [2018-07-24 14:35:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-24 14:35:51,932 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:35:51,933 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:35:51,933 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:35:51,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1874167074, now seen corresponding path program 1 times [2018-07-24 14:35:51,934 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:35:51,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:51,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:35:51,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:51,938 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:35:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:35:52,206 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:35:52,207 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:35:52,207 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:35:52,207 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:35:52,208 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:35:52,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:35:52,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:35:52,209 INFO L87 Difference]: Start difference. First operand 1448 states and 2240 transitions. Second operand 6 states. [2018-07-24 14:36:00,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:00,656 INFO L93 Difference]: Finished difference Result 4174 states and 6572 transitions. [2018-07-24 14:36:00,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:36:00,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-07-24 14:36:00,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:00,682 INFO L225 Difference]: With dead ends: 4174 [2018-07-24 14:36:00,683 INFO L226 Difference]: Without dead ends: 2732 [2018-07-24 14:36:00,692 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:36:00,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2018-07-24 14:36:00,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2667. [2018-07-24 14:36:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2667 states. [2018-07-24 14:36:00,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3772 transitions. [2018-07-24 14:36:00,785 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3772 transitions. Word has length 126 [2018-07-24 14:36:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:00,786 INFO L471 AbstractCegarLoop]: Abstraction has 2667 states and 3772 transitions. [2018-07-24 14:36:00,786 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:36:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3772 transitions. [2018-07-24 14:36:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-24 14:36:00,789 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:00,789 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:36:00,789 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:36:00,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1792675963, now seen corresponding path program 1 times [2018-07-24 14:36:00,790 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:00,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:00,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:00,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:00,791 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:00,993 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:36:00,994 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:36:00,994 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:36:00,994 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:36:00,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:36:00,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:36:00,995 INFO L87 Difference]: Start difference. First operand 2667 states and 3772 transitions. Second operand 5 states. [2018-07-24 14:36:18,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:18,319 INFO L93 Difference]: Finished difference Result 9739 states and 14059 transitions. [2018-07-24 14:36:18,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:36:18,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2018-07-24 14:36:18,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:18,359 INFO L225 Difference]: With dead ends: 9739 [2018-07-24 14:36:18,359 INFO L226 Difference]: Without dead ends: 7078 [2018-07-24 14:36:18,379 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:36:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2018-07-24 14:36:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 6948. [2018-07-24 14:36:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6948 states. [2018-07-24 14:36:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6948 states to 6948 states and 9199 transitions. [2018-07-24 14:36:18,551 INFO L78 Accepts]: Start accepts. Automaton has 6948 states and 9199 transitions. Word has length 136 [2018-07-24 14:36:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:18,551 INFO L471 AbstractCegarLoop]: Abstraction has 6948 states and 9199 transitions. [2018-07-24 14:36:18,551 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:36:18,552 INFO L276 IsEmpty]: Start isEmpty. Operand 6948 states and 9199 transitions. [2018-07-24 14:36:18,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-24 14:36:18,554 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:18,555 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:36:18,555 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:36:18,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2081538162, now seen corresponding path program 1 times [2018-07-24 14:36:18,555 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:18,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:18,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:18,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:18,557 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:18,858 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:18,858 INFO L191 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 [2018-07-24 14:36:18,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:18,952 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:19,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:19,370 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:19,709 WARN L169 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-07-24 14:36:19,851 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 14:36:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:20,228 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:36:20,228 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 10 [2018-07-24 14:36:20,228 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:36:20,229 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:36:20,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:36:20,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:36:20,230 INFO L87 Difference]: Start difference. First operand 6948 states and 9199 transitions. Second operand 5 states. [2018-07-24 14:36:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:33,796 INFO L93 Difference]: Finished difference Result 17801 states and 23935 transitions. [2018-07-24 14:36:33,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:36:33,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2018-07-24 14:36:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:33,843 INFO L225 Difference]: With dead ends: 17801 [2018-07-24 14:36:33,844 INFO L226 Difference]: Without dead ends: 10859 [2018-07-24 14:36:33,879 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:36:33,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2018-07-24 14:36:34,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 10431. [2018-07-24 14:36:34,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10431 states. [2018-07-24 14:36:34,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 13745 transitions. [2018-07-24 14:36:34,110 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 13745 transitions. Word has length 151 [2018-07-24 14:36:34,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:34,111 INFO L471 AbstractCegarLoop]: Abstraction has 10431 states and 13745 transitions. [2018-07-24 14:36:34,111 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:36:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 13745 transitions. [2018-07-24 14:36:34,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-24 14:36:34,116 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:34,117 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:36:34,117 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:36:34,117 INFO L82 PathProgramCache]: Analyzing trace with hash 851273285, now seen corresponding path program 1 times [2018-07-24 14:36:34,117 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:34,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:34,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:34,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:34,119 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:34,632 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 14:36:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:35,010 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:35,010 INFO L191 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 [2018-07-24 14:36:35,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:35,179 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:35,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:36,083 WARN L169 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-24 14:36:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:36,135 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:36,856 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:36:36,857 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-07-24 14:36:36,857 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:36:36,857 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:36:36,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:36:36,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:36:36,858 INFO L87 Difference]: Start difference. First operand 10431 states and 13745 transitions. Second operand 5 states. [2018-07-24 14:36:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:46,729 INFO L93 Difference]: Finished difference Result 23166 states and 30829 transitions. [2018-07-24 14:36:46,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:36:46,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2018-07-24 14:36:46,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:46,782 INFO L225 Difference]: With dead ends: 23166 [2018-07-24 14:36:46,783 INFO L226 Difference]: Without dead ends: 12741 [2018-07-24 14:36:46,821 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 365 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:36:46,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2018-07-24 14:36:47,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 11182. [2018-07-24 14:36:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11182 states. [2018-07-24 14:36:47,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11182 states to 11182 states and 14682 transitions. [2018-07-24 14:36:47,065 INFO L78 Accepts]: Start accepts. Automaton has 11182 states and 14682 transitions. Word has length 184 [2018-07-24 14:36:47,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:47,065 INFO L471 AbstractCegarLoop]: Abstraction has 11182 states and 14682 transitions. [2018-07-24 14:36:47,065 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:36:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 11182 states and 14682 transitions. [2018-07-24 14:36:47,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-07-24 14:36:47,071 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:47,071 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:36:47,071 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:36:47,071 INFO L82 PathProgramCache]: Analyzing trace with hash 543015204, now seen corresponding path program 1 times [2018-07-24 14:36:47,072 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:47,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:47,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:47,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:47,073 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:47,829 WARN L169 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-24 14:36:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:48,307 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:48,307 INFO L191 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 [2018-07-24 14:36:48,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:48,316 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:48,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:48,733 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:49,244 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 69 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:49,265 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:49,266 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:36:49,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:49,285 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:49,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 69 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 14:36:50,102 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 69 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:50,601 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:36:50,601 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 14:36:50,602 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:36:50,602 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 14:36:50,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 14:36:50,603 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2018-07-24 14:36:50,603 INFO L87 Difference]: Start difference. First operand 11182 states and 14682 transitions. Second operand 14 states. [2018-07-24 14:37:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:37:17,718 INFO L93 Difference]: Finished difference Result 27854 states and 37380 transitions. [2018-07-24 14:37:17,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-24 14:37:17,719 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 247 [2018-07-24 14:37:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:37:17,774 INFO L225 Difference]: With dead ends: 27854 [2018-07-24 14:37:17,775 INFO L226 Difference]: Without dead ends: 16095 [2018-07-24 14:37:17,801 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 974 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=527, Invalid=1729, Unknown=0, NotChecked=0, Total=2256 [2018-07-24 14:37:17,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16095 states. [2018-07-24 14:37:18,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16095 to 13595. [2018-07-24 14:37:18,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13595 states. [2018-07-24 14:37:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13595 states to 13595 states and 17986 transitions. [2018-07-24 14:37:18,092 INFO L78 Accepts]: Start accepts. Automaton has 13595 states and 17986 transitions. Word has length 247 [2018-07-24 14:37:18,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:37:18,092 INFO L471 AbstractCegarLoop]: Abstraction has 13595 states and 17986 transitions. [2018-07-24 14:37:18,092 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 14:37:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 13595 states and 17986 transitions. [2018-07-24 14:37:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-07-24 14:37:18,102 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:37:18,102 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:37:18,102 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:37:18,103 INFO L82 PathProgramCache]: Analyzing trace with hash 448943569, now seen corresponding path program 1 times [2018-07-24 14:37:18,103 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:37:18,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:37:18,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:18,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:37:18,104 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:37:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:37:19,370 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:37:19,370 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:37:19,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:19,379 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:37:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:19,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:37:19,800 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 119 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:37:19,801 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:37:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 69 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:37:20,421 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:37:20,422 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:37:20,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:20,565 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:37:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:20,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:37:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 69 proven. 57 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 14:37:21,319 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:37:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 69 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:37:22,034 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:37:22,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 14:37:22,035 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:37:22,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 14:37:22,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 14:37:22,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2018-07-24 14:37:22,036 INFO L87 Difference]: Start difference. First operand 13595 states and 17986 transitions. Second operand 14 states. [2018-07-24 14:37:52,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:37:52,011 INFO L93 Difference]: Finished difference Result 34499 states and 45692 transitions. [2018-07-24 14:37:52,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-24 14:37:52,012 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 332 [2018-07-24 14:37:52,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:37:52,097 INFO L225 Difference]: With dead ends: 34499 [2018-07-24 14:37:52,098 INFO L226 Difference]: Without dead ends: 20326 [2018-07-24 14:37:52,131 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1362 GetRequests, 1311 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=524, Invalid=1732, Unknown=0, NotChecked=0, Total=2256 [2018-07-24 14:37:52,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20326 states. [2018-07-24 14:37:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20326 to 15985. [2018-07-24 14:37:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15985 states. [2018-07-24 14:37:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15985 states to 15985 states and 20965 transitions. [2018-07-24 14:37:52,447 INFO L78 Accepts]: Start accepts. Automaton has 15985 states and 20965 transitions. Word has length 332 [2018-07-24 14:37:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:37:52,447 INFO L471 AbstractCegarLoop]: Abstraction has 15985 states and 20965 transitions. [2018-07-24 14:37:52,448 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 14:37:52,448 INFO L276 IsEmpty]: Start isEmpty. Operand 15985 states and 20965 transitions. [2018-07-24 14:37:52,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-07-24 14:37:52,462 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:37:52,462 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:37:52,462 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:37:52,463 INFO L82 PathProgramCache]: Analyzing trace with hash 145740721, now seen corresponding path program 1 times [2018-07-24 14:37:52,463 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:37:52,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:37:52,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:52,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:37:52,464 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:37:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 35 proven. 135 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 14:37:53,174 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:37:53,174 INFO L191 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 [2018-07-24 14:37:53,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:53,184 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:37:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:53,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:37:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:37:53,454 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:37:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:37:53,783 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:37:53,783 INFO L191 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 [2018-07-24 14:37:53,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:53,799 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:37:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:54,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:37:54,301 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 14:37:54,301 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:37:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 14:37:54,922 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:37:54,923 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5, 5, 5] total 17 [2018-07-24 14:37:54,923 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:37:54,924 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:37:54,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:37:54,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:37:54,925 INFO L87 Difference]: Start difference. First operand 15985 states and 20965 transitions. Second operand 5 states. [2018-07-24 14:38:02,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:38:02,376 INFO L93 Difference]: Finished difference Result 41983 states and 55776 transitions. [2018-07-24 14:38:02,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:38:02,376 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 389 [2018-07-24 14:38:02,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:38:02,445 INFO L225 Difference]: With dead ends: 41983 [2018-07-24 14:38:02,446 INFO L226 Difference]: Without dead ends: 26315 [2018-07-24 14:38:02,484 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1567 GetRequests, 1548 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:38:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26315 states. [2018-07-24 14:38:02,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26315 to 25219. [2018-07-24 14:38:02,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25219 states. [2018-07-24 14:38:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25219 states to 25219 states and 32367 transitions. [2018-07-24 14:38:02,899 INFO L78 Accepts]: Start accepts. Automaton has 25219 states and 32367 transitions. Word has length 389 [2018-07-24 14:38:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:38:02,900 INFO L471 AbstractCegarLoop]: Abstraction has 25219 states and 32367 transitions. [2018-07-24 14:38:02,900 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:38:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 25219 states and 32367 transitions. [2018-07-24 14:38:02,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-07-24 14:38:02,920 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:38:02,920 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:38:02,921 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:38:02,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1026153854, now seen corresponding path program 1 times [2018-07-24 14:38:02,921 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:38:02,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:02,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:02,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:02,922 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:38:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:03,646 WARN L169 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 8 [2018-07-24 14:38:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 69 proven. 131 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 14:38:04,708 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:38:04,708 INFO L191 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 [2018-07-24 14:38:04,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:04,718 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:38:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:04,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:38:05,267 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:05,267 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:38:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:05,666 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:38:05,666 INFO L191 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 [2018-07-24 14:38:05,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:05,683 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:38:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:06,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:38:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-07-24 14:38:06,242 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:38:06,950 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-07-24 14:38:06,952 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:38:06,953 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 5, 5, 5] total 17 [2018-07-24 14:38:06,953 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:38:06,954 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:38:06,954 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:38:06,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:38:06,955 INFO L87 Difference]: Start difference. First operand 25219 states and 32367 transitions. Second operand 5 states. [2018-07-24 14:38:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:38:14,904 INFO L93 Difference]: Finished difference Result 51049 states and 66062 transitions. [2018-07-24 14:38:14,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:38:14,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 422 [2018-07-24 14:38:14,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:38:14,970 INFO L225 Difference]: With dead ends: 51049 [2018-07-24 14:38:14,970 INFO L226 Difference]: Without dead ends: 26147 [2018-07-24 14:38:15,014 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1701 GetRequests, 1676 SyntacticMatches, 9 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:38:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26147 states. [2018-07-24 14:38:15,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26147 to 25527. [2018-07-24 14:38:15,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25527 states. [2018-07-24 14:38:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25527 states to 25527 states and 30811 transitions. [2018-07-24 14:38:15,416 INFO L78 Accepts]: Start accepts. Automaton has 25527 states and 30811 transitions. Word has length 422 [2018-07-24 14:38:15,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:38:15,417 INFO L471 AbstractCegarLoop]: Abstraction has 25527 states and 30811 transitions. [2018-07-24 14:38:15,417 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:38:15,417 INFO L276 IsEmpty]: Start isEmpty. Operand 25527 states and 30811 transitions. [2018-07-24 14:38:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-07-24 14:38:15,427 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:38:15,428 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:38:15,428 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:38:15,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1068314121, now seen corresponding path program 1 times [2018-07-24 14:38:15,429 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:38:15,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:15,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:15,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:15,430 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:38:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 35 proven. 135 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 14:38:15,966 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:38:15,966 INFO L191 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 [2018-07-24 14:38:15,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:15,974 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:38:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:16,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:38:33,020 WARN L169 SmtUtils]: Spent 16.72 s on a formula simplification. DAG size of input: 116 DAG size of output: 50 [2018-07-24 14:38:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 141 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:33,335 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:38:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 141 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:33,737 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:38:33,738 INFO L191 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 [2018-07-24 14:38:33,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:33,754 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:38:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:34,111 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:38:39,495 WARN L169 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2018-07-24 14:38:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 65 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:40,202 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:38:43,968 WARN L169 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2018-07-24 14:38:44,422 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:44,509 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-07-24 14:38:46,207 WARN L169 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-07-24 14:38:46,212 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,219 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,225 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,232 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,238 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,245 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,251 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,258 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,264 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,269 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,275 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,281 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,286 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,292 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,298 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,303 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,308 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,314 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,319 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,325 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,331 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,336 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,342 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,347 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,353 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,359 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,364 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,369 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,375 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,380 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,386 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,391 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,397 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,402 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,407 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,413 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,419 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,424 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,429 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,434 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,440 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,445 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,450 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,456 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,462 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,467 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,472 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,477 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,483 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,488 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,493 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,498 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,503 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,509 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,514 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,519 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,525 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,530 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,535 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,540 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,545 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,550 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,555 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,560 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,566 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,571 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,577 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,582 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,588 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,594 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,600 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,605 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,611 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,617 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,622 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,628 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,633 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,638 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,643 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,649 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,655 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,660 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,665 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,670 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,676 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,681 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,687 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,692 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,702 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,708 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,713 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,719 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,725 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,731 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,736 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,742 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,747 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,753 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,759 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,764 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,770 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,777 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,783 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,789 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,794 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,800 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,805 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,811 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,816 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,822 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,828 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,834 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,839 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,845 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,851 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,857 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,863 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,869 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,874 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,881 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,887 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,893 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,898 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,904 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,909 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,915 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,921 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,926 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,932 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,937 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,943 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,949 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,954 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,960 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,966 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,971 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,977 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,982 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,988 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,993 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:46,999 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,005 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,010 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,016 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,022 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,027 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,033 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,038 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,044 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,051 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,057 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,062 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,072 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,078 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,084 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,090 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,096 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,102 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,107 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,113 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,119 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,124 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,130 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,135 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,141 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,148 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,153 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,159 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,165 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,170 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,176 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,181 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,187 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,193 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,198 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,203 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,209 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,214 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,220 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,225 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,231 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,236 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,242 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,247 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,253 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,258 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,263 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,269 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,274 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,280 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,285 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,291 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,296 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,302 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,307 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,313 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,318 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,324 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,329 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,335 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,340 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,345 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,351 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,356 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,362 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,367 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,373 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,378 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,384 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,389 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,395 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,400 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,406 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,411 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,417 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,423 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,429 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,434 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,440 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,446 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,451 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,456 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,462 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,468 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,473 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,479 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,484 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,490 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,495 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,501 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,506 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,512 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,517 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,523 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,529 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,534 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,539 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,545 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,551 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,556 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,561 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,567 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,572 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,578 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,584 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,589 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,595 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,600 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,606 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,611 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,617 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,623 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,629 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,634 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,640 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,646 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,651 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,657 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,663 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,668 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,674 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,679 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,685 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,691 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,696 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,702 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:47,710 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:52,292 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-07-24 14:38:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 65 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:57,753 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:38:57,754 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6, 9, 10] total 29 [2018-07-24 14:38:57,754 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:38:57,755 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-24 14:38:57,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-24 14:38:57,755 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=708, Unknown=3, NotChecked=0, Total=812 [2018-07-24 14:38:57,756 INFO L87 Difference]: Start difference. First operand 25527 states and 30811 transitions. Second operand 12 states. [2018-07-24 14:39:07,777 WARN L169 SmtUtils]: Spent 6.38 s on a formula simplification that was a NOOP. DAG size: 59 [2018-07-24 14:39:23,428 WARN L169 SmtUtils]: Spent 12.67 s on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-07-24 14:39:32,811 WARN L169 SmtUtils]: Spent 6.48 s on a formula simplification that was a NOOP. DAG size: 59 Received shutdown request... [2018-07-24 14:39:35,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-24 14:39:35,011 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:39:35,017 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:39:35,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:39:35 BoogieIcfgContainer [2018-07-24 14:39:35,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:39:35,019 INFO L168 Benchmark]: Toolchain (without parser) took 250844.59 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 506.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:35,020 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:39:35,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1380.41 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:35,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 275.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:35,022 INFO L168 Benchmark]: Boogie Preprocessor took 591.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:35,023 INFO L168 Benchmark]: RCFGBuilder took 8155.80 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 320.7 MB). Peak memory consumption was 320.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:35,024 INFO L168 Benchmark]: TraceAbstraction took 240435.01 ms. Allocated memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 176.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:35,029 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1380.41 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 275.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 591.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8155.80 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 320.7 MB). Peak memory consumption was 320.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240435.01 ms. Allocated memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 176.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 103). Cancelled while BasicCegarLoop was constructing difference of abstraction (25527states) and interpolant automaton (currently 24 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (5392 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 240.3s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 175.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2726 SDtfs, 23365 SDslu, 3362 SDs, 0 SdLazy, 42080 SolverSat, 6563 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 133.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8119 GetRequests, 7877 SyntacticMatches, 28 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1914 ImplicationChecksByTransitivity, 71.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25527occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 10775 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 57.0s InterpolantComputationTime, 6532 NumberOfCodeBlocks, 6532 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 10464 ConstructedInterpolants, 322 QuantifiedInterpolants, 46810451 SizeOfPredicates, 42 NumberOfNonLiveVariables, 6065 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 35 InterpolantComputations, 10 PerfectInterpolantSequences, 3408/4773 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/Problem15_label28_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-39-35-042.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label28_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-39-35-042.csv Completed graceful shutdown