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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 23:57:26,200 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 23:57:26,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 23:57:26,216 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 23:57:26,216 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 23:57:26,217 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 23:57:26,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 23:57:26,221 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 23:57:26,222 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 23:57:26,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 23:57:26,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 23:57:26,224 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 23:57:26,225 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 23:57:26,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 23:57:26,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 23:57:26,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 23:57:26,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 23:57:26,231 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 23:57:26,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 23:57:26,235 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 23:57:26,236 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 23:57:26,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 23:57:26,240 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 23:57:26,240 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 23:57:26,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 23:57:26,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 23:57:26,243 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 23:57:26,244 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 23:57:26,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 23:57:26,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 23:57:26,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 23:57:26,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 23:57:26,247 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 23:57:26,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 23:57:26,248 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 23:57:26,249 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 23:57:26,249 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-06 23:57:26,266 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 23:57:26,266 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 23:57:26,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 23:57:26,268 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-06 23:57:26,268 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-06 23:57:26,268 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-06 23:57:26,268 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-06 23:57:26,268 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-06 23:57:26,269 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-06 23:57:26,269 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-06 23:57:26,269 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-06 23:57:26,269 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-06 23:57:26,270 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 23:57:26,270 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 23:57:26,270 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 23:57:26,271 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 23:57:26,271 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 23:57:26,271 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 23:57:26,271 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 23:57:26,271 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 23:57:26,272 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 23:57:26,272 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 23:57:26,272 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 23:57:26,272 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 23:57:26,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 23:57:26,273 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 23:57:26,273 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 23:57:26,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 23:57:26,273 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-06 23:57:26,274 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 23:57:26,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 23:57:26,274 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 23:57:26,274 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 23:57:26,274 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-06 23:57:26,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 23:57:26,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 23:57:26,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 23:57:26,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 23:57:26,341 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 23:57:26,342 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-11-06 23:57:26,417 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b1da4e6/0bc3dd03142e4f86b09a8319b1837e0b/FLAGe997a7b72 [2018-11-06 23:57:27,072 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 23:57:27,073 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-11-06 23:57:27,092 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b1da4e6/0bc3dd03142e4f86b09a8319b1837e0b/FLAGe997a7b72 [2018-11-06 23:57:27,113 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b1da4e6/0bc3dd03142e4f86b09a8319b1837e0b [2018-11-06 23:57:27,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 23:57:27,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 23:57:27,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 23:57:27,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 23:57:27,135 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 23:57:27,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:57:27" (1/1) ... [2018-11-06 23:57:27,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f099800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:27, skipping insertion in model container [2018-11-06 23:57:27,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:57:27" (1/1) ... [2018-11-06 23:57:27,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 23:57:27,242 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 23:57:28,018 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:57:28,023 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 23:57:28,278 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:57:28,302 INFO L193 MainTranslator]: Completed translation [2018-11-06 23:57:28,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28 WrapperNode [2018-11-06 23:57:28,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 23:57:28,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 23:57:28,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 23:57:28,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 23:57:28,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 23:57:28,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 23:57:28,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 23:57:28,505 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 23:57:28,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (1/1) ... [2018-11-06 23:57:28,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 23:57:28,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 23:57:28,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 23:57:28,671 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 23:57:28,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (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 [2018-11-06 23:57:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 23:57:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-06 23:57:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-06 23:57:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-06 23:57:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-06 23:57:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 23:57:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 23:57:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-06 23:57:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-06 23:57:33,720 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 23:57:33,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:57:33 BoogieIcfgContainer [2018-11-06 23:57:33,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 23:57:33,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 23:57:33,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 23:57:33,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 23:57:33,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:57:27" (1/3) ... [2018-11-06 23:57:33,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d6de5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:57:33, skipping insertion in model container [2018-11-06 23:57:33,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:28" (2/3) ... [2018-11-06 23:57:33,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d6de5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:57:33, skipping insertion in model container [2018-11-06 23:57:33,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:57:33" (3/3) ... [2018-11-06 23:57:33,733 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label00_false-unreach-call.c [2018-11-06 23:57:33,746 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 23:57:33,758 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 23:57:33,779 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 23:57:33,833 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 23:57:33,833 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 23:57:33,833 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 23:57:33,834 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 23:57:33,834 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 23:57:33,834 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 23:57:33,834 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 23:57:33,834 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 23:57:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-06 23:57:33,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-06 23:57:33,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:33,893 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:33,896 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:33,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:33,904 INFO L82 PathProgramCache]: Analyzing trace with hash 321624169, now seen corresponding path program 1 times [2018-11-06 23:57:33,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:33,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:33,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:33,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:33,971 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:34,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:34,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:57:34,239 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:34,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:57:34,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:57:34,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:34,265 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-11-06 23:57:36,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:36,901 INFO L93 Difference]: Finished difference Result 783 states and 1371 transitions. [2018-11-06 23:57:36,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:57:36,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-06 23:57:36,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:36,925 INFO L225 Difference]: With dead ends: 783 [2018-11-06 23:57:36,925 INFO L226 Difference]: Without dead ends: 488 [2018-11-06 23:57:36,934 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-11-06 23:57:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2018-11-06 23:57:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-11-06 23:57:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 737 transitions. [2018-11-06 23:57:37,027 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 737 transitions. Word has length 13 [2018-11-06 23:57:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:37,027 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 737 transitions. [2018-11-06 23:57:37,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:57:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 737 transitions. [2018-11-06 23:57:37,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-06 23:57:37,032 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:37,033 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:37,033 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:37,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:37,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1144152091, now seen corresponding path program 1 times [2018-11-06 23:57:37,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:37,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:37,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:37,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:37,036 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:37,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:37,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 23:57:37,448 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:37,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 23:57:37,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 23:57:37,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 23:57:37,451 INFO L87 Difference]: Start difference. First operand 488 states and 737 transitions. Second operand 6 states. [2018-11-06 23:57:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:42,689 INFO L93 Difference]: Finished difference Result 1564 states and 2506 transitions. [2018-11-06 23:57:42,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 23:57:42,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2018-11-06 23:57:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:42,701 INFO L225 Difference]: With dead ends: 1564 [2018-11-06 23:57:42,701 INFO L226 Difference]: Without dead ends: 1082 [2018-11-06 23:57:42,705 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 [2018-11-06 23:57:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2018-11-06 23:57:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1070. [2018-11-06 23:57:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2018-11-06 23:57:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1603 transitions. [2018-11-06 23:57:42,763 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1603 transitions. Word has length 86 [2018-11-06 23:57:42,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:42,764 INFO L480 AbstractCegarLoop]: Abstraction has 1070 states and 1603 transitions. [2018-11-06 23:57:42,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 23:57:42,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1603 transitions. [2018-11-06 23:57:42,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-06 23:57:42,767 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:42,768 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:57:42,768 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:42,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:42,769 INFO L82 PathProgramCache]: Analyzing trace with hash 919002884, now seen corresponding path program 1 times [2018-11-06 23:57:42,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:42,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:42,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:42,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:42,770 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:42,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:42,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:57:42,924 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:42,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:57:42,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:57:42,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:42,926 INFO L87 Difference]: Start difference. First operand 1070 states and 1603 transitions. Second operand 3 states. [2018-11-06 23:57:45,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:45,249 INFO L93 Difference]: Finished difference Result 2535 states and 3860 transitions. [2018-11-06 23:57:45,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:57:45,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2018-11-06 23:57:45,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:45,264 INFO L225 Difference]: With dead ends: 2535 [2018-11-06 23:57:45,264 INFO L226 Difference]: Without dead ends: 1471 [2018-11-06 23:57:45,272 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 [2018-11-06 23:57:45,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2018-11-06 23:57:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1461. [2018-11-06 23:57:45,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2018-11-06 23:57:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2109 transitions. [2018-11-06 23:57:45,338 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2109 transitions. Word has length 87 [2018-11-06 23:57:45,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:45,339 INFO L480 AbstractCegarLoop]: Abstraction has 1461 states and 2109 transitions. [2018-11-06 23:57:45,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:57:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2109 transitions. [2018-11-06 23:57:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-06 23:57:45,342 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:45,343 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:57:45,343 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:45,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:45,343 INFO L82 PathProgramCache]: Analyzing trace with hash -363526081, now seen corresponding path program 1 times [2018-11-06 23:57:45,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:45,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:45,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:45,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:45,352 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:45,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:45,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:57:45,512 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:45,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:57:45,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:57:45,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:45,514 INFO L87 Difference]: Start difference. First operand 1461 states and 2109 transitions. Second operand 3 states. [2018-11-06 23:57:48,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:48,141 INFO L93 Difference]: Finished difference Result 3308 states and 4868 transitions. [2018-11-06 23:57:48,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:57:48,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2018-11-06 23:57:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:48,160 INFO L225 Difference]: With dead ends: 3308 [2018-11-06 23:57:48,160 INFO L226 Difference]: Without dead ends: 1853 [2018-11-06 23:57:48,168 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 [2018-11-06 23:57:48,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2018-11-06 23:57:48,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1847. [2018-11-06 23:57:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2018-11-06 23:57:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2612 transitions. [2018-11-06 23:57:48,219 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2612 transitions. Word has length 88 [2018-11-06 23:57:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:48,220 INFO L480 AbstractCegarLoop]: Abstraction has 1847 states and 2612 transitions. [2018-11-06 23:57:48,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:57:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2612 transitions. [2018-11-06 23:57:48,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-06 23:57:48,222 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:48,223 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:57:48,223 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:48,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:48,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1267945301, now seen corresponding path program 1 times [2018-11-06 23:57:48,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:48,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:48,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:48,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:48,226 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:48,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:48,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 23:57:48,749 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:48,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 23:57:48,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 23:57:48,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 23:57:48,750 INFO L87 Difference]: Start difference. First operand 1847 states and 2612 transitions. Second operand 6 states. [2018-11-06 23:57:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:52,752 INFO L93 Difference]: Finished difference Result 6011 states and 8868 transitions. [2018-11-06 23:57:52,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 23:57:52,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-11-06 23:57:52,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:52,790 INFO L225 Difference]: With dead ends: 6011 [2018-11-06 23:57:52,790 INFO L226 Difference]: Without dead ends: 4170 [2018-11-06 23:57:52,805 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 23:57:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2018-11-06 23:57:52,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 4105. [2018-11-06 23:57:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4105 states. [2018-11-06 23:57:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 5484 transitions. [2018-11-06 23:57:52,973 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 5484 transitions. Word has length 94 [2018-11-06 23:57:52,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:52,974 INFO L480 AbstractCegarLoop]: Abstraction has 4105 states and 5484 transitions. [2018-11-06 23:57:52,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 23:57:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 5484 transitions. [2018-11-06 23:57:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-06 23:57:52,977 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:52,977 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:57:52,977 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:52,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:52,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1445719641, now seen corresponding path program 1 times [2018-11-06 23:57:52,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:52,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:52,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:52,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:52,979 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:53,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:53,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-06 23:57:53,392 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:53,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 23:57:53,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 23:57:53,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-06 23:57:53,393 INFO L87 Difference]: Start difference. First operand 4105 states and 5484 transitions. Second operand 7 states. [2018-11-06 23:57:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:57,054 INFO L93 Difference]: Finished difference Result 9559 states and 13437 transitions. [2018-11-06 23:57:57,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-06 23:57:57,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2018-11-06 23:57:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:57,088 INFO L225 Difference]: With dead ends: 9559 [2018-11-06 23:57:57,089 INFO L226 Difference]: Without dead ends: 5265 [2018-11-06 23:57:57,110 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-06 23:57:57,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5265 states. [2018-11-06 23:57:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5265 to 4937. [2018-11-06 23:57:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4937 states. [2018-11-06 23:57:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4937 states to 4937 states and 6610 transitions. [2018-11-06 23:57:57,257 INFO L78 Accepts]: Start accepts. Automaton has 4937 states and 6610 transitions. Word has length 108 [2018-11-06 23:57:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:57,257 INFO L480 AbstractCegarLoop]: Abstraction has 4937 states and 6610 transitions. [2018-11-06 23:57:57,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 23:57:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4937 states and 6610 transitions. [2018-11-06 23:57:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-06 23:57:57,260 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:57,260 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:57:57,260 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:57,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:57,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1076492435, now seen corresponding path program 1 times [2018-11-06 23:57:57,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:57,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:57,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:57,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:57,262 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:58,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:57:58,083 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:57:58,084 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-06 23:57:58,087 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-06 23:57:58,186 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:57:58,186 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:58:02,492 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:58:18,990 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-06 23:58:18,992 INFO L272 AbstractInterpreter]: Visited 140 different actions 406 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-06 23:58:19,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:58:19,016 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-06 23:58:19,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:58:19,016 INFO L194 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 [2018-11-06 23:58:19,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:58:19,028 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-06 23:58:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:58:19,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 23:58:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:58:19,268 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-06 23:58:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:58:19,523 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:58:19,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-11-06 23:58:19,524 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:58:19,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:58:19,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:58:19,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-06 23:58:19,525 INFO L87 Difference]: Start difference. First operand 4937 states and 6610 transitions. Second operand 3 states. [2018-11-06 23:58:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:58:21,723 INFO L93 Difference]: Finished difference Result 10825 states and 14893 transitions. [2018-11-06 23:58:21,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:58:21,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2018-11-06 23:58:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:58:21,751 INFO L225 Difference]: With dead ends: 10825 [2018-11-06 23:58:21,751 INFO L226 Difference]: Without dead ends: 5894 [2018-11-06 23:58:21,786 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-06 23:58:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2018-11-06 23:58:21,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5681. [2018-11-06 23:58:21,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5681 states. [2018-11-06 23:58:21,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5681 states to 5681 states and 7506 transitions. [2018-11-06 23:58:21,947 INFO L78 Accepts]: Start accepts. Automaton has 5681 states and 7506 transitions. Word has length 145 [2018-11-06 23:58:21,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:58:21,948 INFO L480 AbstractCegarLoop]: Abstraction has 5681 states and 7506 transitions. [2018-11-06 23:58:21,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:58:21,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5681 states and 7506 transitions. [2018-11-06 23:58:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-06 23:58:21,952 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:58:21,952 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:58:21,953 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:58:21,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:58:21,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1768948367, now seen corresponding path program 1 times [2018-11-06 23:58:21,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:58:21,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:58:21,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:58:21,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:58:21,954 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:58:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:58:22,472 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-06 23:58:23,053 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-06 23:58:23,588 WARN L179 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-11-06 23:58:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 16 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:58:24,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:58:24,100 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:58:24,101 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-06 23:58:24,101 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-06 23:58:24,111 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:58:24,111 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:58:26,499 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:58:38,452 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:58:38,453 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-06 23:58:38,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:58:38,462 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:58:41,574 INFO L227 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 75.1% of their original sizes. [2018-11-06 23:58:41,574 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-06 23:58:54,455 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-06 23:58:54,455 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-06 23:58:54,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:58:54,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [10] total 30 [2018-11-06 23:58:54,456 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:58:54,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-06 23:58:54,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-06 23:58:54,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2018-11-06 23:58:54,458 INFO L87 Difference]: Start difference. First operand 5681 states and 7506 transitions. Second operand 22 states. Received shutdown request... [2018-11-07 00:01:27,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 00:01:27,891 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:01:27,896 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:01:27,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:01:27 BoogieIcfgContainer [2018-11-07 00:01:27,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:01:27,898 INFO L168 Benchmark]: Toolchain (without parser) took 240769.45 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -425.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-11-07 00:01:27,899 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:01:27,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1172.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:01:27,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -823.9 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:01:27,901 INFO L168 Benchmark]: Boogie Preprocessor took 165.07 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:01:27,902 INFO L168 Benchmark]: RCFGBuilder took 5052.12 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 177.1 MB). Peak memory consumption was 177.1 MB. Max. memory is 7.1 GB. [2018-11-07 00:01:27,902 INFO L168 Benchmark]: TraceAbstraction took 234173.53 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 168.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-07 00:01:27,907 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1172.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 199.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -823.9 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.07 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5052.12 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 177.1 MB). Peak memory consumption was 177.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234173.53 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 168.8 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: 24]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 24). Cancelled while BasicCegarLoop was constructing difference of abstraction (5681states) and FLOYD_HOARE automaton (currently 15 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (440 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 234.0s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 176.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1980 SDtfs, 4869 SDslu, 997 SDs, 0 SdLazy, 10260 SolverSat, 1584 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 575 GetRequests, 513 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5681occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 35.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9951755007558579 AbsIntWeakeningRatio, 0.125 AbsIntAvgWeakeningVarsNumRemoved, 1125.392857142857 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 634 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 991 NumberOfCodeBlocks, 991 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1126 ConstructedInterpolants, 0 QuantifiedInterpolants, 955437 SizeOfPredicates, 2 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 58/155 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown