java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:38:35,025 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:38:35,027 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:38:35,043 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:38:35,043 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:38:35,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:38:35,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:38:35,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:38:35,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:38:35,054 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:38:35,057 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:38:35,057 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:38:35,058 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:38:35,059 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:38:35,068 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:38:35,069 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:38:35,070 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:38:35,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:38:35,078 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:38:35,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:38:35,082 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:38:35,084 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:38:35,089 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:38:35,089 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:38:35,089 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:38:35,090 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:38:35,094 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:38:35,095 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:38:35,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:38:35,098 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:38:35,098 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:38:35,099 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:38:35,099 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:38:35,099 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:38:35,100 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:38:35,101 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:38:35,101 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 11:38:35,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:38:35,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:38:35,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:38:35,130 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:38:35,130 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:38:35,130 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:38:35,130 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:38:35,131 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:38:35,131 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:38:35,131 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:38:35,131 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:38:35,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:38:35,132 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:38:35,132 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:38:35,132 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:38:35,133 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:38:35,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:38:35,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:38:35,133 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:38:35,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:38:35,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:38:35,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:38:35,134 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:38:35,134 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:38:35,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:38:35,135 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:38:35,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:38:35,135 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:38:35,135 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:38:35,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:38:35,136 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:38:35,136 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:38:35,136 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:38:35,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:38:35,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:38:35,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:38:35,217 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:38:35,218 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:38:35,219 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label45_true-unreach-call.c [2018-09-10 11:38:35,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02de82819/e4e10548628d48eba5c5302a166875a6/FLAG8eafd8ffa [2018-09-10 11:38:35,906 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:38:35,910 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label45_true-unreach-call.c [2018-09-10 11:38:35,932 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02de82819/e4e10548628d48eba5c5302a166875a6/FLAG8eafd8ffa [2018-09-10 11:38:35,954 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02de82819/e4e10548628d48eba5c5302a166875a6 [2018-09-10 11:38:35,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:38:35,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:38:35,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:38:35,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:38:35,982 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:38:35,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:38:35" (1/1) ... [2018-09-10 11:38:35,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dd5910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:35, skipping insertion in model container [2018-09-10 11:38:35,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:38:35" (1/1) ... [2018-09-10 11:38:36,204 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:38:36,591 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:38:36,610 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:38:36,755 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:38:36,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36 WrapperNode [2018-09-10 11:38:36,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:38:36,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:38:36,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:38:36,837 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:38:36,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:36,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:38:37,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:38:37,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:38:37,011 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:38:37,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... [2018-09-10 11:38:37,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:38:37,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:38:37,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:38:37,386 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:38:37,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:38:37,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:38:37,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:38:37,461 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:38:37,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:38:37,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:38:37,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:38:37,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:38:37,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:38:42,939 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:38:42,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:38:42 BoogieIcfgContainer [2018-09-10 11:38:42,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:38:42,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:38:42,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:38:42,944 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:38:42,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:38:35" (1/3) ... [2018-09-10 11:38:42,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6febc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:38:42, skipping insertion in model container [2018-09-10 11:38:42,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:36" (2/3) ... [2018-09-10 11:38:42,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6febc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:38:42, skipping insertion in model container [2018-09-10 11:38:42,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:38:42" (3/3) ... [2018-09-10 11:38:42,948 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label45_true-unreach-call.c [2018-09-10 11:38:42,957 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:38:42,967 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:38:43,022 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:38:43,023 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:38:43,023 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:38:43,024 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:38:43,024 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:38:43,024 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:38:43,025 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:38:43,025 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:38:43,025 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:38:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-10 11:38:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-10 11:38:43,068 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:43,069 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:38:43,070 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:43,076 INFO L82 PathProgramCache]: Analyzing trace with hash -23841615, now seen corresponding path program 1 times [2018-09-10 11:38:43,079 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:43,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:43,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:43,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:43,131 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:43,615 WARN L175 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-09-10 11:38:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:43,627 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:38:43,628 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:38:43,628 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:43,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:38:43,651 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:38:43,652 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:38:43,655 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-09-10 11:38:47,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:47,317 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-09-10 11:38:47,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:38:47,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-09-10 11:38:47,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:47,341 INFO L225 Difference]: With dead ends: 996 [2018-09-10 11:38:47,342 INFO L226 Difference]: Without dead ends: 697 [2018-09-10 11:38:47,353 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:38:47,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-09-10 11:38:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-09-10 11:38:47,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-09-10 11:38:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-09-10 11:38:47,451 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 39 [2018-09-10 11:38:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:47,452 INFO L480 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-09-10 11:38:47,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:38:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-09-10 11:38:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-09-10 11:38:47,460 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:47,461 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:38:47,461 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:47,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1487845251, now seen corresponding path program 1 times [2018-09-10 11:38:47,461 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:47,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:47,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:47,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:47,463 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:47,856 WARN L175 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:38:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:48,257 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:38:48,257 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:38:48,258 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:48,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:38:48,261 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:38:48,262 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:38:48,262 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-09-10 11:38:52,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:52,795 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-09-10 11:38:52,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:38:52,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-09-10 11:38:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:52,818 INFO L225 Difference]: With dead ends: 1725 [2018-09-10 11:38:52,818 INFO L226 Difference]: Without dead ends: 1250 [2018-09-10 11:38:52,823 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:38:52,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-09-10 11:38:52,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-09-10 11:38:52,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-09-10 11:38:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-09-10 11:38:52,902 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 112 [2018-09-10 11:38:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:52,902 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-09-10 11:38:52,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:38:52,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-09-10 11:38:52,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-10 11:38:52,911 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:52,912 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:38:52,912 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:52,912 INFO L82 PathProgramCache]: Analyzing trace with hash 84082156, now seen corresponding path program 1 times [2018-09-10 11:38:52,912 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:52,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:52,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:52,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:52,914 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:53,203 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:53,203 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:38:53,204 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:38:53,204 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:53,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:38:53,205 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:38:53,205 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:38:53,205 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 4 states. [2018-09-10 11:38:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:56,421 INFO L93 Difference]: Finished difference Result 3240 states and 4918 transitions. [2018-09-10 11:38:56,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:38:56,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2018-09-10 11:38:56,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:56,440 INFO L225 Difference]: With dead ends: 3240 [2018-09-10 11:38:56,440 INFO L226 Difference]: Without dead ends: 2015 [2018-09-10 11:38:56,449 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:38:56,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2018-09-10 11:38:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 2000. [2018-09-10 11:38:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2000 states. [2018-09-10 11:38:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2897 transitions. [2018-09-10 11:38:56,523 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2897 transitions. Word has length 113 [2018-09-10 11:38:56,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:56,524 INFO L480 AbstractCegarLoop]: Abstraction has 2000 states and 2897 transitions. [2018-09-10 11:38:56,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:38:56,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2897 transitions. [2018-09-10 11:38:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-10 11:38:56,533 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:56,534 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:38:56,534 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:56,534 INFO L82 PathProgramCache]: Analyzing trace with hash 13633623, now seen corresponding path program 1 times [2018-09-10 11:38:56,534 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:56,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:56,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:56,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:56,536 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:56,941 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:38:56,941 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:38:56,941 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:56,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:38:56,942 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:38:56,942 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:38:56,943 INFO L87 Difference]: Start difference. First operand 2000 states and 2897 transitions. Second operand 6 states. [2018-09-10 11:39:01,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:01,929 INFO L93 Difference]: Finished difference Result 7663 states and 13259 transitions. [2018-09-10 11:39:01,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 11:39:01,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-09-10 11:39:01,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:01,994 INFO L225 Difference]: With dead ends: 7663 [2018-09-10 11:39:01,995 INFO L226 Difference]: Without dead ends: 5669 [2018-09-10 11:39:02,056 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 11:39:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2018-09-10 11:39:02,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5142. [2018-09-10 11:39:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5142 states. [2018-09-10 11:39:02,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 7297 transitions. [2018-09-10 11:39:02,284 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 7297 transitions. Word has length 138 [2018-09-10 11:39:02,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:02,285 INFO L480 AbstractCegarLoop]: Abstraction has 5142 states and 7297 transitions. [2018-09-10 11:39:02,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:39:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 7297 transitions. [2018-09-10 11:39:02,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-09-10 11:39:02,294 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:02,294 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:39:02,295 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:02,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1597740930, now seen corresponding path program 1 times [2018-09-10 11:39:02,295 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:02,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:02,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:02,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:02,296 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:39:02,590 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:02,590 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:02,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:02,606 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:02,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-09-10 11:39:02,994 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-09-10 11:39:03,241 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:39:03,242 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-10 11:39:03,242 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:39:03,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:39:03,243 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:39:03,243 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:39:03,243 INFO L87 Difference]: Start difference. First operand 5142 states and 7297 transitions. Second operand 3 states. [2018-09-10 11:39:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:05,932 INFO L93 Difference]: Finished difference Result 12528 states and 19444 transitions. [2018-09-10 11:39:05,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:39:05,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2018-09-10 11:39:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:05,984 INFO L225 Difference]: With dead ends: 12528 [2018-09-10 11:39:05,985 INFO L226 Difference]: Without dead ends: 7392 [2018-09-10 11:39:06,063 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 371 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:39:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2018-09-10 11:39:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7392. [2018-09-10 11:39:06,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7392 states. [2018-09-10 11:39:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7392 states to 7392 states and 10710 transitions. [2018-09-10 11:39:06,311 INFO L78 Accepts]: Start accepts. Automaton has 7392 states and 10710 transitions. Word has length 186 [2018-09-10 11:39:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:06,312 INFO L480 AbstractCegarLoop]: Abstraction has 7392 states and 10710 transitions. [2018-09-10 11:39:06,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:39:06,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7392 states and 10710 transitions. [2018-09-10 11:39:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-10 11:39:06,325 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:06,326 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:39:06,326 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:06,326 INFO L82 PathProgramCache]: Analyzing trace with hash 187007348, now seen corresponding path program 1 times [2018-09-10 11:39:06,326 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:06,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:06,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:06,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:06,328 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:39:06,980 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:06,980 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:06,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:06,987 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:07,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-10 11:39:07,225 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:07,433 WARN L175 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-09-10 11:39:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:39:08,410 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:39:08,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 11 [2018-09-10 11:39:08,410 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:39:08,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:39:08,411 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:39:08,411 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:39:08,411 INFO L87 Difference]: Start difference. First operand 7392 states and 10710 transitions. Second operand 5 states. [2018-09-10 11:39:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:12,687 INFO L93 Difference]: Finished difference Result 17333 states and 24894 transitions. [2018-09-10 11:39:12,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:39:12,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2018-09-10 11:39:12,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:12,743 INFO L225 Difference]: With dead ends: 17333 [2018-09-10 11:39:12,743 INFO L226 Difference]: Without dead ends: 9752 [2018-09-10 11:39:12,773 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 413 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:39:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9752 states. [2018-09-10 11:39:13,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9752 to 9701. [2018-09-10 11:39:13,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9701 states. [2018-09-10 11:39:13,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9701 states to 9701 states and 13744 transitions. [2018-09-10 11:39:13,069 INFO L78 Accepts]: Start accepts. Automaton has 9701 states and 13744 transitions. Word has length 208 [2018-09-10 11:39:13,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:13,070 INFO L480 AbstractCegarLoop]: Abstraction has 9701 states and 13744 transitions. [2018-09-10 11:39:13,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:39:13,070 INFO L276 IsEmpty]: Start isEmpty. Operand 9701 states and 13744 transitions. [2018-09-10 11:39:13,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-09-10 11:39:13,082 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:13,083 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:39:13,083 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:13,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1523785897, now seen corresponding path program 1 times [2018-09-10 11:39:13,083 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:13,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:13,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:13,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:13,085 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:14,029 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:14,030 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:14,030 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:14,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:14,047 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:14,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:14,475 WARN L175 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2018-09-10 11:39:14,567 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:14,568 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:15,356 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:15,378 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:39:15,378 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-09-10 11:39:15,378 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:39:15,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:39:15,379 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:39:15,379 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:39:15,379 INFO L87 Difference]: Start difference. First operand 9701 states and 13744 transitions. Second operand 6 states. [2018-09-10 11:39:18,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:18,620 INFO L93 Difference]: Finished difference Result 26220 states and 42443 transitions. [2018-09-10 11:39:18,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 11:39:18,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2018-09-10 11:39:18,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:18,739 INFO L225 Difference]: With dead ends: 26220 [2018-09-10 11:39:18,739 INFO L226 Difference]: Without dead ends: 16525 [2018-09-10 11:39:18,818 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 497 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:39:18,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16525 states. [2018-09-10 11:39:19,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16525 to 15889. [2018-09-10 11:39:19,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15889 states. [2018-09-10 11:39:19,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15889 states to 15889 states and 24359 transitions. [2018-09-10 11:39:19,348 INFO L78 Accepts]: Start accepts. Automaton has 15889 states and 24359 transitions. Word has length 251 [2018-09-10 11:39:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:19,349 INFO L480 AbstractCegarLoop]: Abstraction has 15889 states and 24359 transitions. [2018-09-10 11:39:19,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:39:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 15889 states and 24359 transitions. [2018-09-10 11:39:19,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-09-10 11:39:19,429 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:19,429 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:39:19,430 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:19,430 INFO L82 PathProgramCache]: Analyzing trace with hash -488047406, now seen corresponding path program 1 times [2018-09-10 11:39:19,430 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:19,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:19,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:19,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:19,431 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-10 11:39:21,037 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:21,037 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:21,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:21,054 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:21,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:24,187 WARN L175 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-09-10 11:39:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 11 proven. 60 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-10 11:39:24,575 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:25,226 WARN L175 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-09-10 11:39:25,236 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,292 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,344 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,392 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,450 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,498 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,554 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,611 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,721 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,770 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,944 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:25,990 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,036 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,079 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,134 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,252 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,308 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,360 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,406 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,450 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,504 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,548 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,637 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,723 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,789 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,865 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,909 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:26,988 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:27,031 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:27,106 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:27,188 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:27,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:27,866 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,203 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,514 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,573 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,631 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,671 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,720 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,759 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,799 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,917 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:28,966 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,018 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,243 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,334 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,375 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,417 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,461 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,502 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,546 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,588 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,672 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,716 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,775 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,815 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,949 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:29,992 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,034 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,075 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,116 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,161 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,205 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,248 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,502 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,542 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,846 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,936 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:30,979 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,021 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,062 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,104 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,185 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,228 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,267 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,305 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,344 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,384 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,424 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,494 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,533 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,575 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,617 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,722 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,813 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,856 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,897 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:31,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,020 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,063 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,108 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,198 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,262 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,305 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,351 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,395 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:32,726 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,065 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,213 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,255 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,331 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,725 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,768 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,814 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,859 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,901 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:33,942 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,004 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,061 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,145 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,191 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,233 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,284 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,355 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,477 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,519 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,561 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,603 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,643 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,684 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,726 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,766 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,810 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,852 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,895 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,939 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:34,983 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,022 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,064 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,104 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,149 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,235 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,276 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,323 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,440 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,486 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,530 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,617 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,683 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,726 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,766 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,808 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,849 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,897 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:35,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,132 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,190 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,235 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,298 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,340 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,379 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,423 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:36,467 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 67 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:39:40,252 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:40,252 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:39:40,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:40,271 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:40,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:46,869 WARN L175 SmtUtils]: Spent 4.01 s on a formula simplification that was a NOOP. DAG size: 35 [2018-09-10 11:39:56,939 WARN L175 SmtUtils]: Spent 6.02 s on a formula simplification that was a NOOP. DAG size: 38 [2018-09-10 11:39:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 9 proven. 62 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-10 11:39:57,124 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:57,358 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,434 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,492 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,549 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,710 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,763 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,841 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:57,953 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,003 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,086 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,226 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,283 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,330 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,380 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,458 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,508 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,554 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,605 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,709 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,760 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,813 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,869 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:58,977 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,029 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,104 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,155 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,210 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,260 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,317 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,371 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,421 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,468 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,514 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,584 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,641 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,693 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,755 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,814 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,882 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:39:59,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,019 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,069 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,124 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,175 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,231 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,293 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,345 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,467 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,516 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,565 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,616 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,666 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,718 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,876 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,929 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:00,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,030 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,083 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,147 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,202 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,249 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,298 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,349 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,403 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,452 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,504 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,589 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,638 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,692 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,741 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,879 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,933 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:01,987 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,037 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,089 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,142 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,192 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,287 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,410 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,474 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,526 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,580 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,634 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,690 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,741 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,798 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,851 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,901 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:02,954 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,008 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,061 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,120 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,173 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,228 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,518 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,567 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,614 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,664 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,713 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,764 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,818 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,864 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,917 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:03,972 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,022 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,075 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,127 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,178 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,225 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,272 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,324 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,376 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,425 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,475 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,528 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,576 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,630 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,798 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,862 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:04,942 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,005 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,074 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,142 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,200 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,308 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,361 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,411 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,463 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,514 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,568 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,621 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,674 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,725 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,776 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:05,873 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,067 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,333 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,383 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,435 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,489 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,539 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,587 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,642 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,693 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,746 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,847 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,899 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:06,950 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:07,003 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:07,055 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:07,106 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:07,155 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:07,204 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:07,251 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:07,303 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 11:40:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 67 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:40:10,663 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:40:10,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9] total 24 [2018-09-10 11:40:10,664 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:40:10,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-10 11:40:10,665 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-10 11:40:10,665 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=400, Unknown=4, NotChecked=0, Total=552 [2018-09-10 11:40:10,665 INFO L87 Difference]: Start difference. First operand 15889 states and 24359 transitions. Second operand 16 states. [2018-09-10 11:40:18,731 WARN L175 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 35 [2018-09-10 11:41:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:41:55,013 INFO L93 Difference]: Finished difference Result 60845 states and 121359 transitions. [2018-09-10 11:41:55,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-09-10 11:41:55,014 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 347 [2018-09-10 11:41:55,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:41:55,464 INFO L225 Difference]: With dead ends: 60845 [2018-09-10 11:41:55,464 INFO L226 Difference]: Without dead ends: 44962 [2018-09-10 11:41:55,759 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1431 GetRequests, 1038 SyntacticMatches, 339 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5582 ImplicationChecksByTransitivity, 65.1s TimeCoverageRelationStatistics Valid=766, Invalid=2303, Unknown=11, NotChecked=0, Total=3080 [2018-09-10 11:41:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44962 states. [2018-09-10 11:41:57,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44962 to 43126. [2018-09-10 11:41:57,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43126 states. [2018-09-10 11:41:57,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43126 states to 43126 states and 62923 transitions. [2018-09-10 11:41:57,519 INFO L78 Accepts]: Start accepts. Automaton has 43126 states and 62923 transitions. Word has length 347 [2018-09-10 11:41:57,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:41:57,520 INFO L480 AbstractCegarLoop]: Abstraction has 43126 states and 62923 transitions. [2018-09-10 11:41:57,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-10 11:41:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 43126 states and 62923 transitions. [2018-09-10 11:41:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-09-10 11:41:57,750 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:41:57,751 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:41:57,751 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:41:57,752 INFO L82 PathProgramCache]: Analyzing trace with hash -75458648, now seen corresponding path program 1 times [2018-09-10 11:41:57,752 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:41:57,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:41:57,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:41:57,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:41:57,753 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:41:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:41:58,265 WARN L175 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-10 11:41:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 188 proven. 88 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-10 11:41:58,964 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:41:58,964 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:41:58,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:41:58,971 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:41:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:41:59,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:41:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 356 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-10 11:41:59,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:41:59,702 WARN L175 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2018-09-10 11:42:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 188 proven. 88 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-10 11:42:00,623 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:42:00,624 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:42:00,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:42:00,639 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:42:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:42:00,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:42:01,641 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 352 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-10 11:42:01,641 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:42:02,387 WARN L175 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-10 11:42:03,215 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 104 proven. 282 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:42:03,218 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:42:03,219 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 8, 10, 11] total 39 [2018-09-10 11:42:03,219 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:42:03,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-10 11:42:03,220 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-10 11:42:03,221 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1267, Unknown=0, NotChecked=0, Total=1482 [2018-09-10 11:42:03,221 INFO L87 Difference]: Start difference. First operand 43126 states and 62923 transitions. Second operand 18 states. [2018-09-10 11:42:07,865 WARN L175 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-09-10 11:42:09,338 WARN L175 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-09-10 11:42:10,891 WARN L175 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-09-10 11:42:11,996 WARN L175 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2018-09-10 11:42:12,957 WARN L175 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 28 [2018-09-10 11:42:13,416 WARN L175 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2018-09-10 11:42:19,183 WARN L175 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 27 [2018-09-10 11:42:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:42:23,059 INFO L93 Difference]: Finished difference Result 100712 states and 193141 transitions. [2018-09-10 11:42:23,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-09-10 11:42:23,059 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 421 [2018-09-10 11:42:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:42:23,643 INFO L225 Difference]: With dead ends: 100712 [2018-09-10 11:42:23,643 INFO L226 Difference]: Without dead ends: 57972 [2018-09-10 11:42:24,028 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1804 GetRequests, 1701 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2757 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2044, Invalid=7856, Unknown=0, NotChecked=0, Total=9900 [2018-09-10 11:42:24,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57972 states. [2018-09-10 11:42:26,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57972 to 54548. [2018-09-10 11:42:26,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54548 states. [2018-09-10 11:42:27,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54548 states to 54548 states and 78206 transitions. [2018-09-10 11:42:27,240 INFO L78 Accepts]: Start accepts. Automaton has 54548 states and 78206 transitions. Word has length 421 [2018-09-10 11:42:27,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:42:27,243 INFO L480 AbstractCegarLoop]: Abstraction has 54548 states and 78206 transitions. [2018-09-10 11:42:27,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-10 11:42:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 54548 states and 78206 transitions. [2018-09-10 11:42:27,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2018-09-10 11:42:27,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:42:27,399 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:42:27,400 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:42:27,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1209291006, now seen corresponding path program 1 times [2018-09-10 11:42:27,401 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:42:27,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:42:27,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:42:27,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:42:27,402 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:42:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:42:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2018-09-10 11:42:27,790 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:42:27,790 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:42:27,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:42:27,806 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:42:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:42:27,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:42:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2018-09-10 11:42:28,116 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:42:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2018-09-10 11:42:28,357 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:42:28,358 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-09-10 11:42:28,358 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:42:28,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:42:28,359 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:42:28,359 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:42:28,359 INFO L87 Difference]: Start difference. First operand 54548 states and 78206 transitions. Second operand 3 states. [2018-09-10 11:42:30,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:42:30,240 INFO L93 Difference]: Finished difference Result 107584 states and 154614 transitions. [2018-09-10 11:42:30,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:42:30,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2018-09-10 11:42:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:42:30,464 INFO L225 Difference]: With dead ends: 107584 [2018-09-10 11:42:30,464 INFO L226 Difference]: Without dead ends: 53422 [2018-09-10 11:42:30,659 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 871 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:42:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53422 states. [2018-09-10 11:42:31,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53422 to 52951. [2018-09-10 11:42:31,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52951 states. [2018-09-10 11:42:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52951 states to 52951 states and 67924 transitions. [2018-09-10 11:42:31,829 INFO L78 Accepts]: Start accepts. Automaton has 52951 states and 67924 transitions. Word has length 436 [2018-09-10 11:42:31,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:42:31,830 INFO L480 AbstractCegarLoop]: Abstraction has 52951 states and 67924 transitions. [2018-09-10 11:42:31,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:42:31,830 INFO L276 IsEmpty]: Start isEmpty. Operand 52951 states and 67924 transitions. [2018-09-10 11:42:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-09-10 11:42:32,034 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:42:32,034 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:42:32,035 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:42:32,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1315245614, now seen corresponding path program 1 times [2018-09-10 11:42:32,035 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:42:32,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:42:32,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:42:32,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:42:32,037 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:42:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:42:33,329 WARN L175 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-10 11:42:33,543 WARN L175 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-10 11:42:33,992 WARN L175 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-10 11:42:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 368 proven. 94 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-09-10 11:42:34,642 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:42:34,643 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:42:34,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:42:34,650 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:42:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:42:34,851 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:42:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-09-10 11:42:35,803 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:42:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 368 proven. 94 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-09-10 11:42:36,423 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:42:36,423 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:42:36,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:42:36,440 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:42:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:42:36,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:42:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-09-10 11:42:37,538 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:42:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 368 proven. 94 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-09-10 11:42:37,965 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:42:37,965 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8, 5, 5] total 26 [2018-09-10 11:42:37,965 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:42:37,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-10 11:42:37,966 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-10 11:42:37,966 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-09-10 11:42:37,967 INFO L87 Difference]: Start difference. First operand 52951 states and 67924 transitions. Second operand 17 states. Received shutdown request... [2018-09-10 11:42:38,068 WARN L183 SmtUtils]: Removed 9 from assertion stack [2018-09-10 11:42:38,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:42:38,068 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:42:38,073 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:42:38,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:42:38 BoogieIcfgContainer [2018-09-10 11:42:38,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:42:38,074 INFO L168 Benchmark]: Toolchain (without parser) took 242106.11 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-10 11:42:38,075 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 11:42:38,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-09-10 11:42:38,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-10 11:42:38,077 INFO L168 Benchmark]: Boogie Preprocessor took 374.92 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -945.9 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-10 11:42:38,078 INFO L168 Benchmark]: RCFGBuilder took 5554.11 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 7.1 GB. [2018-09-10 11:42:38,079 INFO L168 Benchmark]: TraceAbstraction took 235132.27 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -383.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-10 11:42:38,084 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 864.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 173.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 374.92 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -945.9 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5554.11 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235132.27 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -383.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 102). Cancelled while BasicCegarLoop was constructing difference of abstraction (52951states) and FLOYD_HOARE automaton (currently 3 states, 17 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 53. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 235.0s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 155.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2177 SDtfs, 13130 SDslu, 3148 SDs, 0 SdLazy, 27762 SolverSat, 6568 SolverUnsat, 26 SolverUnknown, 0 SolverNotchecked, 114.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7447 GetRequests, 6868 SyntacticMatches, 357 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8598 ImplicationChecksByTransitivity, 79.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54548occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 7195 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 66.7s InterpolantComputationTime, 6353 NumberOfCodeBlocks, 6353 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 9929 ConstructedInterpolants, 633 QuantifiedInterpolants, 34781466 SizeOfPredicates, 37 NumberOfNonLiveVariables, 5978 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 31 InterpolantComputations, 9 PerfectInterpolantSequences, 7801/9282 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-42-38-098.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-42-38-098.csv Completed graceful shutdown