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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:10:42,094 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:10:42,096 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:10:42,108 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:10:42,108 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:10:42,110 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:10:42,111 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:10:42,113 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:10:42,114 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:10:42,115 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:10:42,116 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:10:42,116 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:10:42,117 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:10:42,118 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:10:42,120 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:10:42,120 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:10:42,121 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:10:42,123 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:10:42,125 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:10:42,127 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:10:42,128 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:10:42,129 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:10:42,132 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:10:42,132 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:10:42,132 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:10:42,133 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:10:42,134 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:10:42,135 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:10:42,136 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:10:42,137 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:10:42,137 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:10:42,138 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:10:42,138 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:10:42,138 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:10:42,139 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:10:42,140 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:10:42,140 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:10:42,160 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:10:42,160 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:10:42,161 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:10:42,162 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:10:42,162 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:10:42,162 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:10:42,162 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:10:42,162 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:10:42,163 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:10:42,163 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:10:42,163 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:10:42,163 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:10:42,163 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:10:42,164 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:10:42,164 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:10:42,164 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:10:42,165 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:10:42,165 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:10:42,165 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:10:42,165 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:10:42,165 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:10:42,166 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:10:42,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:10:42,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:10:42,166 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:10:42,166 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:10:42,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:10:42,167 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:10:42,167 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:10:42,167 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:10:42,168 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:10:42,168 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:10:42,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:10:42,168 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:10:42,168 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:10:42,169 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:10:42,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:10:42,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:10:42,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:10:42,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:10:42,233 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:10:42,234 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label54_true-unreach-call.c [2018-11-07 09:10:42,297 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71a24bde/afbcd59e3cb3418e9367064230ba4c2b/FLAGeec843f23 [2018-11-07 09:10:43,020 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:10:43,021 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label54_true-unreach-call.c [2018-11-07 09:10:43,043 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71a24bde/afbcd59e3cb3418e9367064230ba4c2b/FLAGeec843f23 [2018-11-07 09:10:43,063 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71a24bde/afbcd59e3cb3418e9367064230ba4c2b [2018-11-07 09:10:43,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:10:43,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:10:43,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:10:43,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:10:43,085 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:10:43,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:10:43" (1/1) ... [2018-11-07 09:10:43,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627d1230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:43, skipping insertion in model container [2018-11-07 09:10:43,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:10:43" (1/1) ... [2018-11-07 09:10:43,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:10:43,189 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:10:44,010 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:10:44,015 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:10:44,301 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:10:44,321 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:10:44,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44 WrapperNode [2018-11-07 09:10:44,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:10:44,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:10:44,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:10:44,323 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:10:44,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:10:44,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:10:44,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:10:44,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:10:44,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (1/1) ... [2018-11-07 09:10:44,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:10:44,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:10:44,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:10:44,712 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:10:44,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (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 [2018-11-07 09:10:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:10:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:10:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:10:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:10:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:10:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:10:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:10:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:10:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:10:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:10:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:10:51,214 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:10:51,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:10:51 BoogieIcfgContainer [2018-11-07 09:10:51,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:10:51,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:10:51,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:10:51,222 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:10:51,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:10:43" (1/3) ... [2018-11-07 09:10:51,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@900e53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:10:51, skipping insertion in model container [2018-11-07 09:10:51,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:44" (2/3) ... [2018-11-07 09:10:51,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@900e53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:10:51, skipping insertion in model container [2018-11-07 09:10:51,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:10:51" (3/3) ... [2018-11-07 09:10:51,230 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label54_true-unreach-call.c [2018-11-07 09:10:51,240 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:10:51,254 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:10:51,273 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:10:51,326 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:10:51,326 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:10:51,327 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:10:51,327 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:10:51,327 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:10:51,327 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:10:51,327 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:10:51,328 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:10:51,363 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 09:10:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-07 09:10:51,373 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:10:51,374 INFO L375 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] [2018-11-07 09:10:51,376 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:10:51,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:10:51,383 INFO L82 PathProgramCache]: Analyzing trace with hash -62143143, now seen corresponding path program 1 times [2018-11-07 09:10:51,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:10:51,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:51,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:10:51,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:51,438 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:10:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:10:51,868 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:10:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:10:51,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:10:51,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:10:51,988 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:10:51,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:10:52,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:10:52,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:10:52,014 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-11-07 09:10:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:10:55,496 INFO L93 Difference]: Finished difference Result 1192 states and 2147 transitions. [2018-11-07 09:10:55,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:10:55,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-07 09:10:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:10:55,529 INFO L225 Difference]: With dead ends: 1192 [2018-11-07 09:10:55,529 INFO L226 Difference]: Without dead ends: 752 [2018-11-07 09:10:55,541 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 [2018-11-07 09:10:55,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2018-11-07 09:10:55,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2018-11-07 09:10:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-11-07 09:10:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1322 transitions. [2018-11-07 09:10:55,647 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1322 transitions. Word has length 47 [2018-11-07 09:10:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:10:55,648 INFO L480 AbstractCegarLoop]: Abstraction has 752 states and 1322 transitions. [2018-11-07 09:10:55,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:10:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1322 transitions. [2018-11-07 09:10:55,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 09:10:55,656 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:10:55,657 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:10:55,657 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:10:55,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:10:55,658 INFO L82 PathProgramCache]: Analyzing trace with hash -207953228, now seen corresponding path program 1 times [2018-11-07 09:10:55,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:10:55,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:55,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:10:55,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:55,660 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:10:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:10:56,147 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:10:56,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:10:56,147 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:10:56,149 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-11-07 09:10:56,151 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [349], [351], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:10:56,196 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:10:56,196 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:10:56,696 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:10:56,698 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 09:10:56,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:10:56,736 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:10:57,031 INFO L227 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 78.34% of their original sizes. [2018-11-07 09:10:57,032 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:10:57,284 INFO L415 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-11-07 09:10:57,284 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:10:57,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:10:57,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-07 09:10:57,285 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:10:57,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:10:57,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:10:57,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:10:57,288 INFO L87 Difference]: Start difference. First operand 752 states and 1322 transitions. Second operand 6 states. [2018-11-07 09:12:12,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:12:12,301 INFO L93 Difference]: Finished difference Result 1808 states and 3199 transitions. [2018-11-07 09:12:12,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:12:12,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-11-07 09:12:12,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:12:12,309 INFO L225 Difference]: With dead ends: 1808 [2018-11-07 09:12:12,309 INFO L226 Difference]: Without dead ends: 1062 [2018-11-07 09:12:12,314 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:12:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-11-07 09:12:12,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1060. [2018-11-07 09:12:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2018-11-07 09:12:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1637 transitions. [2018-11-07 09:12:12,359 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1637 transitions. Word has length 128 [2018-11-07 09:12:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:12:12,360 INFO L480 AbstractCegarLoop]: Abstraction has 1060 states and 1637 transitions. [2018-11-07 09:12:12,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:12:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1637 transitions. [2018-11-07 09:12:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-07 09:12:12,367 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:12:12,368 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:12:12,368 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:12:12,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:12:12,369 INFO L82 PathProgramCache]: Analyzing trace with hash 389944670, now seen corresponding path program 1 times [2018-11-07 09:12:12,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:12:12,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:12:12,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:12:12,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:12:12,371 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:12:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:12:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:12:13,023 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:12:13,023 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:12:13,023 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-11-07 09:12:13,024 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [349], [351], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:12:13,030 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:12:13,030 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:12:13,243 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:12:13,244 INFO L272 AbstractInterpreter]: Visited 104 different actions 299 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 09:12:13,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:12:13,271 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:12:13,514 INFO L227 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 83.97% of their original sizes. [2018-11-07 09:12:13,515 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:12:14,154 INFO L415 sIntCurrentIteration]: We unified 223 AI predicates to 223 [2018-11-07 09:12:14,155 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:12:14,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:12:14,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2018-11-07 09:12:14,156 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:12:14,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 09:12:14,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 09:12:14,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:12:14,157 INFO L87 Difference]: Start difference. First operand 1060 states and 1637 transitions. Second operand 9 states. [2018-11-07 09:14:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:14:01,219 INFO L93 Difference]: Finished difference Result 2132 states and 3531 transitions. [2018-11-07 09:14:01,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 09:14:01,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 224 [2018-11-07 09:14:01,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:14:01,228 INFO L225 Difference]: With dead ends: 2132 [2018-11-07 09:14:01,228 INFO L226 Difference]: Without dead ends: 1386 [2018-11-07 09:14:01,232 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-11-07 09:14:01,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2018-11-07 09:14:01,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1383. [2018-11-07 09:14:01,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2018-11-07 09:14:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1987 transitions. [2018-11-07 09:14:01,272 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1987 transitions. Word has length 224 [2018-11-07 09:14:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:14:01,273 INFO L480 AbstractCegarLoop]: Abstraction has 1383 states and 1987 transitions. [2018-11-07 09:14:01,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 09:14:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1987 transitions. [2018-11-07 09:14:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-11-07 09:14:01,282 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:14:01,283 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:14:01,283 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:14:01,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:14:01,284 INFO L82 PathProgramCache]: Analyzing trace with hash -590187935, now seen corresponding path program 1 times [2018-11-07 09:14:01,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:14:01,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:14:01,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:14:01,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:14:01,285 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:14:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:14:02,252 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-07 09:14:02,451 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 9 proven. 74 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-07 09:14:02,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:14:02,451 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:14:02,452 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 404 with the following transitions: [2018-11-07 09:14:02,452 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [349], [351], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:14:02,478 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:14:02,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:14:03,072 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:14:03,072 INFO L272 AbstractInterpreter]: Visited 284 different actions 846 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 09:14:03,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:14:03,082 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:14:03,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:14:03,082 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 [2018-11-07 09:14:03,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:14:03,093 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:14:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:14:03,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:14:03,780 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:14:03,780 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:14:03,928 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-11-07 09:14:04,074 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-07 09:14:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:14:04,561 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:14:04,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-07 09:14:04,561 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:14:04,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 09:14:04,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 09:14:04,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-11-07 09:14:04,563 INFO L87 Difference]: Start difference. First operand 1383 states and 1987 transitions. Second operand 10 states. [2018-11-07 09:14:27,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:14:27,992 INFO L93 Difference]: Finished difference Result 7313 states and 13213 transitions. [2018-11-07 09:14:27,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-07 09:14:27,992 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 403 [2018-11-07 09:14:27,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:14:28,051 INFO L225 Difference]: With dead ends: 7313 [2018-11-07 09:14:28,051 INFO L226 Difference]: Without dead ends: 6567 [2018-11-07 09:14:28,073 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 825 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=596, Invalid=2056, Unknown=0, NotChecked=0, Total=2652 [2018-11-07 09:14:28,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6567 states. [2018-11-07 09:14:28,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6567 to 6466. [2018-11-07 09:14:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6466 states. [2018-11-07 09:14:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 10276 transitions. [2018-11-07 09:14:28,304 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 10276 transitions. Word has length 403 [2018-11-07 09:14:28,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:14:28,310 INFO L480 AbstractCegarLoop]: Abstraction has 6466 states and 10276 transitions. [2018-11-07 09:14:28,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 09:14:28,310 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 10276 transitions. [2018-11-07 09:14:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-11-07 09:14:28,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:14:28,325 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:14:28,325 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:14:28,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:14:28,326 INFO L82 PathProgramCache]: Analyzing trace with hash 708438704, now seen corresponding path program 1 times [2018-11-07 09:14:28,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:14:28,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:14:28,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:14:28,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:14:28,327 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:14:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:14:28,933 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:14:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 81 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-11-07 09:14:30,054 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:14:30,054 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:14:30,054 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 440 with the following transitions: [2018-11-07 09:14:30,055 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [349], [351], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [782], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:14:30,065 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:14:30,066 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:14:30,838 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:14:30,839 INFO L272 AbstractInterpreter]: Visited 283 different actions 836 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 09:14:30,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:14:30,876 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:14:31,445 INFO L227 lantSequenceWeakener]: Weakened 436 states. On average, predicates are now at 80.26% of their original sizes. [2018-11-07 09:14:31,445 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:14:32,255 INFO L415 sIntCurrentIteration]: We unified 438 AI predicates to 438 [2018-11-07 09:14:32,255 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:14:32,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:14:32,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2018-11-07 09:14:32,256 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:14:32,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 09:14:32,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 09:14:32,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:14:32,264 INFO L87 Difference]: Start difference. First operand 6466 states and 10276 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 09:14:41,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 09:14:41,267 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:14:41,273 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:14:41,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:14:41 BoogieIcfgContainer [2018-11-07 09:14:41,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:14:41,274 INFO L168 Benchmark]: Toolchain (without parser) took 238198.96 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -412.9 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-11-07 09:14:41,275 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 09:14:41,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1244.27 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-07 09:14:41,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 217.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -889.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 09:14:41,278 INFO L168 Benchmark]: Boogie Preprocessor took 170.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 09:14:41,279 INFO L168 Benchmark]: RCFGBuilder took 6503.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.4 MB). Peak memory consumption was 284.4 MB. Max. memory is 7.1 GB. [2018-11-07 09:14:41,279 INFO L168 Benchmark]: TraceAbstraction took 230056.93 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 72.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 09:14:41,286 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 1244.27 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 217.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -889.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6503.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.4 MB). Peak memory consumption was 284.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230056.93 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 72.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 127). Cancelled while BasicCegarLoop was constructing difference of abstraction (6466states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (1010 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 229.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 218.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1583 SDtfs, 9008 SDslu, 2559 SDs, 0 SdLazy, 17922 SolverSat, 3697 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 175.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1687 GetRequests, 1597 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6466occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.2s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9975047366187897 AbsIntWeakeningRatio, 0.09137055837563451 AbsIntAvgWeakeningVarsNumRemoved, 15.445431472081218 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 106 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1644 NumberOfCodeBlocks, 1644 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 2040 ConstructedInterpolants, 0 QuantifiedInterpolants, 3169425 SizeOfPredicates, 1 NumberOfNonLiveVariables, 583 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 759/881 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown