java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:32:48,095 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:32:48,098 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:32:48,121 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:32:48,122 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:32:48,123 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:32:48,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:32:48,126 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:32:48,128 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:32:48,129 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:32:48,130 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:32:48,130 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:32:48,131 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:32:48,132 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:32:48,133 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:32:48,134 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:32:48,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:32:48,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:32:48,139 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:32:48,141 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:32:48,142 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:32:48,143 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:32:48,146 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:32:48,146 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:32:48,146 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:32:48,147 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:32:48,148 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:32:48,149 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:32:48,150 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:32:48,153 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:32:48,154 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:32:48,155 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:32:48,155 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:32:48,155 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:32:48,160 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:32:48,161 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:32:48,161 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 17:32:48,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:32:48,196 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:32:48,197 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:32:48,198 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:32:48,198 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:32:48,198 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:32:48,198 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:32:48,199 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:32:48,199 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:32:48,199 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:32:48,199 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:32:48,201 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:32:48,201 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:32:48,201 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:32:48,202 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:32:48,202 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:32:48,203 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:32:48,203 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:32:48,203 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:32:48,203 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:32:48,204 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:32:48,204 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:32:48,204 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:32:48,204 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:32:48,206 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:32:48,206 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:32:48,206 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:32:48,206 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:32:48,207 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:32:48,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:32:48,207 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:32:48,207 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:32:48,208 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:32:48,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:32:48,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:32:48,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:32:48,284 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:32:48,285 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:32:48,286 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-09-14 17:32:48,650 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a523e542/6926177fbc274b8886143a7a6569703e/FLAG19d1d44d0 [2018-09-14 17:32:49,157 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:32:49,158 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-09-14 17:32:49,201 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a523e542/6926177fbc274b8886143a7a6569703e/FLAG19d1d44d0 [2018-09-14 17:32:49,225 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a523e542/6926177fbc274b8886143a7a6569703e [2018-09-14 17:32:49,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:32:49,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:32:49,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:32:49,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:32:49,255 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:32:49,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:32:49" (1/1) ... [2018-09-14 17:32:49,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab40953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:49, skipping insertion in model container [2018-09-14 17:32:49,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:32:49" (1/1) ... [2018-09-14 17:32:49,274 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:32:50,773 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:32:50,796 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:32:51,561 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:32:52,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52 WrapperNode [2018-09-14 17:32:52,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:32:52,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:32:52,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:32:52,004 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:32:52,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:52,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:52,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:32:52,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:32:52,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:32:52,333 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:32:53,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:53,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:53,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:53,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:53,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:53,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:53,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... [2018-09-14 17:32:53,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:32:53,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:32:53,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:32:53,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:32:53,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:32:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:32:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:32:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:32:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:32:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:32:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:32:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:32:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:32:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:32:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:32:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:32:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:32:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:32:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:33:03,956 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:33:03,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:33:03 BoogieIcfgContainer [2018-09-14 17:33:03,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:33:03,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:33:03,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:33:03,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:33:03,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:32:49" (1/3) ... [2018-09-14 17:33:03,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617d0f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:33:03, skipping insertion in model container [2018-09-14 17:33:03,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:52" (2/3) ... [2018-09-14 17:33:03,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617d0f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:33:03, skipping insertion in model container [2018-09-14 17:33:03,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:33:03" (3/3) ... [2018-09-14 17:33:03,966 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label37_true-unreach-call.c [2018-09-14 17:33:03,976 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:33:03,985 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:33:04,059 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:33:04,059 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:33:04,060 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:33:04,060 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:33:04,060 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:33:04,060 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:33:04,060 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:33:04,060 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:33:04,061 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:33:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-14 17:33:04,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-14 17:33:04,137 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:04,138 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:04,139 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:04,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1389126997, now seen corresponding path program 1 times [2018-09-14 17:33:04,148 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:04,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:04,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:04,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:04,209 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:04,686 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:33:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:04,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:33:04,807 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:33:04,807 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:04,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:33:04,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:33:04,834 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:33:04,838 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-14 17:33:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:14,450 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-09-14 17:33:14,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:33:14,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-09-14 17:33:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:14,492 INFO L225 Difference]: With dead ends: 3087 [2018-09-14 17:33:14,492 INFO L226 Difference]: Without dead ends: 1965 [2018-09-14 17:33:14,507 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:33:14,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-09-14 17:33:14,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-09-14 17:33:14,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-09-14 17:33:14,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-09-14 17:33:14,712 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 61 [2018-09-14 17:33:14,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:14,713 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-09-14 17:33:14,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:33:14,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-09-14 17:33:14,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-14 17:33:14,723 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:14,723 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:14,724 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:14,725 INFO L82 PathProgramCache]: Analyzing trace with hash -159322310, now seen corresponding path program 1 times [2018-09-14 17:33:14,725 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:14,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:14,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:14,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:14,727 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:15,468 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-14 17:33:15,595 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:15,596 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:33:15,596 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:33:15,597 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:15,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:33:15,599 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:33:15,600 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:33:15,600 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-09-14 17:33:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:29,279 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-09-14 17:33:29,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:33:29,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-09-14 17:33:29,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:29,306 INFO L225 Difference]: With dead ends: 5634 [2018-09-14 17:33:29,307 INFO L226 Difference]: Without dead ends: 3681 [2018-09-14 17:33:29,315 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:33:29,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-09-14 17:33:29,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-09-14 17:33:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-09-14 17:33:29,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-09-14 17:33:29,462 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 138 [2018-09-14 17:33:29,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:29,463 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-09-14 17:33:29,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:33:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-09-14 17:33:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-09-14 17:33:29,474 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:29,474 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:29,474 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:29,475 INFO L82 PathProgramCache]: Analyzing trace with hash -587412254, now seen corresponding path program 1 times [2018-09-14 17:33:29,475 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:29,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:29,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:29,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:29,480 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:29,832 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:33:29,833 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:33:29,833 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:29,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:33:29,834 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:33:29,834 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:33:29,834 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-09-14 17:33:42,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:42,806 INFO L93 Difference]: Finished difference Result 12391 states and 20613 transitions. [2018-09-14 17:33:42,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:33:42,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-09-14 17:33:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:42,858 INFO L225 Difference]: With dead ends: 12391 [2018-09-14 17:33:42,858 INFO L226 Difference]: Without dead ends: 8747 [2018-09-14 17:33:42,881 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:33:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2018-09-14 17:33:43,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 8687. [2018-09-14 17:33:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8687 states. [2018-09-14 17:33:43,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8687 states to 8687 states and 12872 transitions. [2018-09-14 17:33:43,130 INFO L78 Accepts]: Start accepts. Automaton has 8687 states and 12872 transitions. Word has length 157 [2018-09-14 17:33:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:43,131 INFO L480 AbstractCegarLoop]: Abstraction has 8687 states and 12872 transitions. [2018-09-14 17:33:43,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:33:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 8687 states and 12872 transitions. [2018-09-14 17:33:43,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-09-14 17:33:43,136 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:43,140 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:43,141 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:43,141 INFO L82 PathProgramCache]: Analyzing trace with hash 955353466, now seen corresponding path program 1 times [2018-09-14 17:33:43,141 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:43,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:43,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:43,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:43,143 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:43,460 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:33:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:43,518 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:33:43,518 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:33:43,518 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:43,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:33:43,519 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:33:43,519 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:33:43,519 INFO L87 Difference]: Start difference. First operand 8687 states and 12872 transitions. Second operand 6 states. [2018-09-14 17:33:54,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:54,878 INFO L93 Difference]: Finished difference Result 22923 states and 34949 transitions. [2018-09-14 17:33:54,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:33:54,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-09-14 17:33:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:54,953 INFO L225 Difference]: With dead ends: 22923 [2018-09-14 17:33:54,953 INFO L226 Difference]: Without dead ends: 14242 [2018-09-14 17:33:54,988 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:33:54,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14242 states. [2018-09-14 17:33:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14242 to 14068. [2018-09-14 17:33:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14068 states. [2018-09-14 17:33:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14068 states to 14068 states and 19976 transitions. [2018-09-14 17:33:55,339 INFO L78 Accepts]: Start accepts. Automaton has 14068 states and 19976 transitions. Word has length 169 [2018-09-14 17:33:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:55,339 INFO L480 AbstractCegarLoop]: Abstraction has 14068 states and 19976 transitions. [2018-09-14 17:33:55,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:33:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 14068 states and 19976 transitions. [2018-09-14 17:33:55,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-14 17:33:55,348 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:55,348 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:55,349 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:55,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1006516317, now seen corresponding path program 1 times [2018-09-14 17:33:55,349 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:55,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:55,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:55,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:55,350 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:33:55,574 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:33:55,574 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:33:55,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:55,586 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:33:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:55,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:33:55,805 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-09-14 17:33:55,806 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:33:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:33:56,288 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:33:56,288 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-14 17:33:56,288 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:56,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:33:56,289 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:33:56,290 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:33:56,290 INFO L87 Difference]: Start difference. First operand 14068 states and 19976 transitions. Second operand 5 states. [2018-09-14 17:34:10,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:10,710 INFO L93 Difference]: Finished difference Result 41235 states and 63365 transitions. [2018-09-14 17:34:10,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:34:10,712 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 224 [2018-09-14 17:34:10,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:10,856 INFO L225 Difference]: With dead ends: 41235 [2018-09-14 17:34:10,856 INFO L226 Difference]: Without dead ends: 27173 [2018-09-14 17:34:10,910 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 446 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:34:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27173 states. [2018-09-14 17:34:11,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27173 to 26900. [2018-09-14 17:34:11,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26900 states. [2018-09-14 17:34:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26900 states to 26900 states and 37970 transitions. [2018-09-14 17:34:11,637 INFO L78 Accepts]: Start accepts. Automaton has 26900 states and 37970 transitions. Word has length 224 [2018-09-14 17:34:11,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:11,637 INFO L480 AbstractCegarLoop]: Abstraction has 26900 states and 37970 transitions. [2018-09-14 17:34:11,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:34:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 26900 states and 37970 transitions. [2018-09-14 17:34:11,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-14 17:34:11,648 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:11,648 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:34:11,648 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:11,649 INFO L82 PathProgramCache]: Analyzing trace with hash 849957397, now seen corresponding path program 1 times [2018-09-14 17:34:11,649 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:11,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:11,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:11,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:11,650 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:12,219 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:34:12,219 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:34:12,219 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:12,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:34:12,220 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:34:12,220 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:34:12,221 INFO L87 Difference]: Start difference. First operand 26900 states and 37970 transitions. Second operand 5 states. [2018-09-14 17:34:40,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:40,361 INFO L93 Difference]: Finished difference Result 63510 states and 90466 transitions. [2018-09-14 17:34:40,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:34:40,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2018-09-14 17:34:40,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:40,519 INFO L225 Difference]: With dead ends: 63510 [2018-09-14 17:34:40,519 INFO L226 Difference]: Without dead ends: 36616 [2018-09-14 17:34:40,583 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:34:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36616 states. [2018-09-14 17:34:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36616 to 35986. [2018-09-14 17:34:41,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35986 states. [2018-09-14 17:34:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35986 states to 35986 states and 49229 transitions. [2018-09-14 17:34:41,300 INFO L78 Accepts]: Start accepts. Automaton has 35986 states and 49229 transitions. Word has length 232 [2018-09-14 17:34:41,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:41,300 INFO L480 AbstractCegarLoop]: Abstraction has 35986 states and 49229 transitions. [2018-09-14 17:34:41,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:34:41,301 INFO L276 IsEmpty]: Start isEmpty. Operand 35986 states and 49229 transitions. [2018-09-14 17:34:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-09-14 17:34:41,316 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:41,317 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:34:41,317 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:41,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1766669933, now seen corresponding path program 1 times [2018-09-14 17:34:41,325 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:41,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:41,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:41,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:41,326 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-14 17:34:41,804 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:34:41,805 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:34:41,805 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:41,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:34:41,806 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:34:41,806 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:34:41,806 INFO L87 Difference]: Start difference. First operand 35986 states and 49229 transitions. Second operand 3 states. [2018-09-14 17:34:48,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:48,625 INFO L93 Difference]: Finished difference Result 71955 states and 99772 transitions. [2018-09-14 17:34:48,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:34:48,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2018-09-14 17:34:48,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:48,752 INFO L225 Difference]: With dead ends: 71955 [2018-09-14 17:34:48,752 INFO L226 Difference]: Without dead ends: 36782 [2018-09-14 17:34:48,831 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:34:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36782 states. [2018-09-14 17:34:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36782 to 36781. [2018-09-14 17:34:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36781 states. [2018-09-14 17:34:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36781 states to 36781 states and 47379 transitions. [2018-09-14 17:34:49,448 INFO L78 Accepts]: Start accepts. Automaton has 36781 states and 47379 transitions. Word has length 263 [2018-09-14 17:34:49,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:49,449 INFO L480 AbstractCegarLoop]: Abstraction has 36781 states and 47379 transitions. [2018-09-14 17:34:49,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:34:49,449 INFO L276 IsEmpty]: Start isEmpty. Operand 36781 states and 47379 transitions. [2018-09-14 17:34:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-09-14 17:34:49,466 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:49,467 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:34:49,467 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:49,467 INFO L82 PathProgramCache]: Analyzing trace with hash 931767883, now seen corresponding path program 1 times [2018-09-14 17:34:49,467 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:49,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:49,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:49,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:49,469 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:49,762 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:34:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:34:49,923 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:49,923 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:34:49,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:49,932 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:50,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 215 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:50,459 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:50,640 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 215 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:50,661 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:50,661 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:34:50,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:50,678 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:50,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:51,049 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:34:51,049 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:34:51,283 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-14 17:34:51,283 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5, 5, 5] total 12 [2018-09-14 17:34:51,284 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:51,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:34:51,285 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:34:51,285 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:34:51,285 INFO L87 Difference]: Start difference. First operand 36781 states and 47379 transitions. Second operand 5 states. [2018-09-14 17:34:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:58,498 INFO L93 Difference]: Finished difference Result 77554 states and 100992 transitions. [2018-09-14 17:34:58,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:34:58,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 288 [2018-09-14 17:34:58,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:58,633 INFO L225 Difference]: With dead ends: 77554 [2018-09-14 17:34:58,633 INFO L226 Difference]: Without dead ends: 41586 [2018-09-14 17:34:59,047 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1159 GetRequests, 1139 SyntacticMatches, 9 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:34:59,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41586 states. [2018-09-14 17:34:59,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41586 to 39302. [2018-09-14 17:34:59,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39302 states. [2018-09-14 17:34:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39302 states to 39302 states and 48920 transitions. [2018-09-14 17:34:59,708 INFO L78 Accepts]: Start accepts. Automaton has 39302 states and 48920 transitions. Word has length 288 [2018-09-14 17:34:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:59,709 INFO L480 AbstractCegarLoop]: Abstraction has 39302 states and 48920 transitions. [2018-09-14 17:34:59,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:34:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 39302 states and 48920 transitions. [2018-09-14 17:34:59,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-09-14 17:34:59,727 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:59,728 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:34:59,728 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:59,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1883387198, now seen corresponding path program 1 times [2018-09-14 17:34:59,729 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:59,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:59,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:59,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:59,730 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 145 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:35:00,774 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:00,774 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:35:00,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:00,783 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:00,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:01,139 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-09-14 17:35:01,140 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 108 proven. 89 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:35:01,736 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:35:01,737 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 5] total 20 [2018-09-14 17:35:01,737 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:01,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:35:01,738 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:35:01,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-09-14 17:35:01,738 INFO L87 Difference]: Start difference. First operand 39302 states and 48920 transitions. Second operand 5 states. [2018-09-14 17:35:21,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:21,297 INFO L93 Difference]: Finished difference Result 82323 states and 104039 transitions. [2018-09-14 17:35:21,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:35:21,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 326 [2018-09-14 17:35:21,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:21,376 INFO L225 Difference]: With dead ends: 82323 [2018-09-14 17:35:21,376 INFO L226 Difference]: Without dead ends: 43027 [2018-09-14 17:35:21,429 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 647 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2018-09-14 17:35:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43027 states. [2018-09-14 17:35:22,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43027 to 40530. [2018-09-14 17:35:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40530 states. [2018-09-14 17:35:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40530 states to 40530 states and 50458 transitions. [2018-09-14 17:35:22,128 INFO L78 Accepts]: Start accepts. Automaton has 40530 states and 50458 transitions. Word has length 326 [2018-09-14 17:35:22,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:22,129 INFO L480 AbstractCegarLoop]: Abstraction has 40530 states and 50458 transitions. [2018-09-14 17:35:22,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:35:22,129 INFO L276 IsEmpty]: Start isEmpty. Operand 40530 states and 50458 transitions. [2018-09-14 17:35:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-09-14 17:35:22,144 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:22,145 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:35:22,145 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:22,145 INFO L82 PathProgramCache]: Analyzing trace with hash 66179240, now seen corresponding path program 1 times [2018-09-14 17:35:22,146 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:22,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:22,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:22,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:22,147 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 152 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:35:22,889 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:22,889 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:35:22,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:22,901 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:23,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-14 17:35:24,564 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:24,724 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-14 17:35:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-14 17:35:25,272 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:35:25,272 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 5] total 19 [2018-09-14 17:35:25,272 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:25,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:35:25,273 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:35:25,273 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2018-09-14 17:35:25,273 INFO L87 Difference]: Start difference. First operand 40530 states and 50458 transitions. Second operand 5 states. [2018-09-14 17:35:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:35,095 INFO L93 Difference]: Finished difference Result 105739 states and 135885 transitions. [2018-09-14 17:35:35,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:35:35,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2018-09-14 17:35:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:35,227 INFO L225 Difference]: With dead ends: 105739 [2018-09-14 17:35:35,228 INFO L226 Difference]: Without dead ends: 59389 [2018-09-14 17:35:35,324 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 662 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-09-14 17:35:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59389 states. [2018-09-14 17:35:36,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59389 to 59158. [2018-09-14 17:35:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59158 states. [2018-09-14 17:35:36,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59158 states to 59158 states and 73266 transitions. [2018-09-14 17:35:36,880 INFO L78 Accepts]: Start accepts. Automaton has 59158 states and 73266 transitions. Word has length 333 [2018-09-14 17:35:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:36,881 INFO L480 AbstractCegarLoop]: Abstraction has 59158 states and 73266 transitions. [2018-09-14 17:35:36,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:35:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand 59158 states and 73266 transitions. [2018-09-14 17:35:36,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-09-14 17:35:36,900 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:36,900 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:35:36,900 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:36,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1950239082, now seen corresponding path program 1 times [2018-09-14 17:35:36,901 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:36,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:36,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:36,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:36,902 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:37,257 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:35:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 103 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:35:38,184 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:38,184 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) [2018-09-14 17:35:38,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:38,200 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:35:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:38,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:35:38,415 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:35:38,543 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:35:38,544 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-14 17:35:38,544 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:38,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:35:38,545 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:35:38,545 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:35:38,545 INFO L87 Difference]: Start difference. First operand 59158 states and 73266 transitions. Second operand 3 states. [2018-09-14 17:35:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:44,240 INFO L93 Difference]: Finished difference Result 118313 states and 146608 transitions. [2018-09-14 17:35:44,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:35:44,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 386 [2018-09-14 17:35:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:45,193 INFO L225 Difference]: With dead ends: 118313 [2018-09-14 17:35:45,194 INFO L226 Difference]: Without dead ends: 59965 [2018-09-14 17:35:45,283 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 772 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:35:45,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59965 states. [2018-09-14 17:35:45,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59965 to 58338. [2018-09-14 17:35:45,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58338 states. [2018-09-14 17:35:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58338 states to 58338 states and 67516 transitions. [2018-09-14 17:35:46,112 INFO L78 Accepts]: Start accepts. Automaton has 58338 states and 67516 transitions. Word has length 386 [2018-09-14 17:35:46,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:46,113 INFO L480 AbstractCegarLoop]: Abstraction has 58338 states and 67516 transitions. [2018-09-14 17:35:46,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:35:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 58338 states and 67516 transitions. [2018-09-14 17:35:46,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2018-09-14 17:35:46,173 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:46,174 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:35:46,174 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1167078085, now seen corresponding path program 1 times [2018-09-14 17:35:46,175 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:46,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:46,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:46,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:46,176 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 311 proven. 155 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-14 17:35:46,650 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:46,650 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:35:46,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:46,658 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:46,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:47,039 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 523 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-09-14 17:35:47,039 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 311 proven. 155 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-14 17:35:47,993 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:47,994 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:35:48,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:48,012 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:48,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 523 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-09-14 17:35:48,578 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 311 proven. 155 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-14 17:35:48,880 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:35:48,881 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-14 17:35:48,881 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:35:48,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:35:48,883 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:35:48,884 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:35:48,884 INFO L87 Difference]: Start difference. First operand 58338 states and 67516 transitions. Second operand 9 states. [2018-09-14 17:36:11,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:11,626 INFO L93 Difference]: Finished difference Result 158563 states and 197442 transitions. [2018-09-14 17:36:11,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-14 17:36:11,627 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 596 [2018-09-14 17:36:11,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:12,080 INFO L225 Difference]: With dead ends: 158563 [2018-09-14 17:36:12,080 INFO L226 Difference]: Without dead ends: 98567 [2018-09-14 17:36:12,280 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2418 GetRequests, 2388 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2018-09-14 17:36:12,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98567 states. [2018-09-14 17:36:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98567 to 97728. [2018-09-14 17:36:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97728 states. [2018-09-14 17:36:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97728 states to 97728 states and 118551 transitions. [2018-09-14 17:36:14,198 INFO L78 Accepts]: Start accepts. Automaton has 97728 states and 118551 transitions. Word has length 596 [2018-09-14 17:36:14,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:14,199 INFO L480 AbstractCegarLoop]: Abstraction has 97728 states and 118551 transitions. [2018-09-14 17:36:14,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:36:14,199 INFO L276 IsEmpty]: Start isEmpty. Operand 97728 states and 118551 transitions. [2018-09-14 17:36:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2018-09-14 17:36:14,265 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:14,266 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, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:36:14,267 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash 893585858, now seen corresponding path program 1 times [2018-09-14 17:36:14,267 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:14,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:14,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:14,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:14,268 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:15,332 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-09-14 17:36:15,898 WARN L178 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 18 [2018-09-14 17:36:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 470 proven. 55 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-09-14 17:36:17,362 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:17,363 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 [2018-09-14 17:36:17,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:17,371 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:17,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 510 proven. 2 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-09-14 17:36:18,052 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:36:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 231 proven. 475 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:36:19,263 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:19,263 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 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 [2018-09-14 17:36:19,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:19,281 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:19,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 510 proven. 2 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-09-14 17:36:20,108 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:36:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 231 proven. 475 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:36:20,884 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:36:20,884 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7, 8, 7, 8] total 25 [2018-09-14 17:36:20,884 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:36:20,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-14 17:36:20,886 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-14 17:36:20,886 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2018-09-14 17:36:20,887 INFO L87 Difference]: Start difference. First operand 97728 states and 118551 transitions. Second operand 20 states. [2018-09-14 17:36:21,206 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2018-09-14 17:36:28,839 WARN L178 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 Received shutdown request... [2018-09-14 17:36:40,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-09-14 17:36:40,068 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:36:40,074 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:36:40,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:36:40 BoogieIcfgContainer [2018-09-14 17:36:40,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:36:40,075 INFO L168 Benchmark]: Toolchain (without parser) took 230836.31 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -125.0 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-14 17:36:40,076 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 17:36:40,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2758.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:36:40,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 328.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. [2018-09-14 17:36:40,078 INFO L168 Benchmark]: Boogie Preprocessor took 1322.50 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:36:40,079 INFO L168 Benchmark]: RCFGBuilder took 10302.12 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 176.2 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -50.3 MB). Peak memory consumption was 762.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:36:40,080 INFO L168 Benchmark]: TraceAbstraction took 216115.97 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.5 GB in the end (delta: 865.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-14 17:36:40,085 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2758.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 328.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1322.50 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10302.12 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 176.2 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -50.3 MB). Peak memory consumption was 762.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216115.97 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.5 GB in the end (delta: 865.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 174). Cancelled while BasicCegarLoop was constructing difference of abstraction (97728states) and FLOYD_HOARE automaton (currently 61 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (16691 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 216.0s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 184.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7646 SDtfs, 52610 SDslu, 5924 SDs, 0 SdLazy, 83130 SolverSat, 16023 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 151.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8820 GetRequests, 8586 SyntacticMatches, 36 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2512 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97728occurred in iteration=12, 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: 8.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 8653 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 8076 NumberOfCodeBlocks, 8076 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 12324 ConstructedInterpolants, 222 QuantifiedInterpolants, 22101193 SizeOfPredicates, 16 NumberOfNonLiveVariables, 6818 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 33 InterpolantComputations, 12 PerfectInterpolantSequences, 9625/11585 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label37_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-36-40-099.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label37_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-36-40-099.csv Completed graceful shutdown