java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label50_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 12:13:16,126 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 12:13:16,128 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 12:13:16,139 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 12:13:16,140 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 12:13:16,141 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 12:13:16,142 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 12:13:16,144 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 12:13:16,146 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 12:13:16,146 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 12:13:16,147 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 12:13:16,148 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 12:13:16,149 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 12:13:16,149 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 12:13:16,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 12:13:16,151 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 12:13:16,152 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 12:13:16,154 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 12:13:16,156 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 12:13:16,157 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 12:13:16,158 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 12:13:16,159 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 12:13:16,161 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 12:13:16,162 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 12:13:16,162 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 12:13:16,163 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 12:13:16,164 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 12:13:16,164 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 12:13:16,165 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 12:13:16,166 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 12:13:16,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 12:13:16,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 12:13:16,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 12:13:16,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 12:13:16,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 12:13:16,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 12:13:16,169 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 12:13:16,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 12:13:16,188 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 12:13:16,189 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 12:13:16,192 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 12:13:16,192 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 12:13:16,192 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 12:13:16,192 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 12:13:16,193 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 12:13:16,193 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 12:13:16,193 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 12:13:16,193 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 12:13:16,193 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 12:13:16,194 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 12:13:16,194 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 12:13:16,195 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 12:13:16,195 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 12:13:16,196 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 12:13:16,196 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 12:13:16,196 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 12:13:16,196 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 12:13:16,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 12:13:16,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 12:13:16,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 12:13:16,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 12:13:16,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 12:13:16,197 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 12:13:16,198 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 12:13:16,199 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 12:13:16,199 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 12:13:16,200 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 12:13:16,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 12:13:16,200 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 12:13:16,200 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 12:13:16,201 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 12:13:16,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 12:13:16,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 12:13:16,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 12:13:16,287 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 12:13:16,287 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 12:13:16,288 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label50_false-unreach-call.c [2018-10-27 12:13:16,352 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34aca0f7d/2fe5bcb3bc53471c93b5f88639b78606/FLAG436c3815d [2018-10-27 12:13:17,214 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 12:13:17,216 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label50_false-unreach-call.c [2018-10-27 12:13:17,260 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34aca0f7d/2fe5bcb3bc53471c93b5f88639b78606/FLAG436c3815d [2018-10-27 12:13:17,282 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34aca0f7d/2fe5bcb3bc53471c93b5f88639b78606 [2018-10-27 12:13:17,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 12:13:17,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 12:13:17,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 12:13:17,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 12:13:17,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 12:13:17,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:13:17" (1/1) ... [2018-10-27 12:13:17,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2138e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:17, skipping insertion in model container [2018-10-27 12:13:17,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:13:17" (1/1) ... [2018-10-27 12:13:17,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 12:13:17,587 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 12:13:19,555 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:13:19,560 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 12:13:20,698 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:13:20,763 INFO L193 MainTranslator]: Completed translation [2018-10-27 12:13:20,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20 WrapperNode [2018-10-27 12:13:20,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 12:13:20,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 12:13:20,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 12:13:20,766 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 12:13:20,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:20,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:21,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 12:13:21,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 12:13:21,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 12:13:21,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 12:13:21,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:21,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:21,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:21,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:21,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:21,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:21,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... [2018-10-27 12:13:22,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 12:13:22,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 12:13:22,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 12:13:22,055 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 12:13:22,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 12:13:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 12:13:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 12:13:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-27 12:13:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-27 12:13:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-27 12:13:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-27 12:13:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 12:13:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 12:13:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 12:13:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 12:13:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 12:13:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 12:13:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 12:13:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 12:13:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 12:13:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 12:13:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 12:13:22,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 12:13:40,235 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 12:13:40,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:13:40 BoogieIcfgContainer [2018-10-27 12:13:40,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 12:13:40,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 12:13:40,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 12:13:40,241 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 12:13:40,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:13:17" (1/3) ... [2018-10-27 12:13:40,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214ca1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:13:40, skipping insertion in model container [2018-10-27 12:13:40,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:13:20" (2/3) ... [2018-10-27 12:13:40,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214ca1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:13:40, skipping insertion in model container [2018-10-27 12:13:40,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:13:40" (3/3) ... [2018-10-27 12:13:40,245 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label50_false-unreach-call.c [2018-10-27 12:13:40,254 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 12:13:40,264 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 12:13:40,282 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 12:13:40,351 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 12:13:40,352 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 12:13:40,352 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 12:13:40,352 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 12:13:40,352 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 12:13:40,353 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 12:13:40,353 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 12:13:40,353 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 12:13:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-27 12:13:40,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 12:13:40,427 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:13:40,429 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] [2018-10-27 12:13:40,432 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:13:40,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:13:40,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1858672342, now seen corresponding path program 1 times [2018-10-27 12:13:40,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:13:40,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:13:40,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:13:40,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:13:40,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:13:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:13:40,893 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-27 12:13:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:13:40,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:13:40,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 12:13:40,907 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:13:40,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 12:13:40,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 12:13:40,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 12:13:40,933 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-27 12:14:06,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:14:06,187 INFO L93 Difference]: Finished difference Result 6510 states and 12381 transitions. [2018-10-27 12:14:06,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 12:14:06,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-10-27 12:14:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:14:06,255 INFO L225 Difference]: With dead ends: 6510 [2018-10-27 12:14:06,255 INFO L226 Difference]: Without dead ends: 4726 [2018-10-27 12:14:06,270 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 12:14:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2018-10-27 12:14:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4687. [2018-10-27 12:14:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4687 states. [2018-10-27 12:14:06,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 7413 transitions. [2018-10-27 12:14:06,502 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 7413 transitions. Word has length 27 [2018-10-27 12:14:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:14:06,503 INFO L481 AbstractCegarLoop]: Abstraction has 4687 states and 7413 transitions. [2018-10-27 12:14:06,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 12:14:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 7413 transitions. [2018-10-27 12:14:06,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-27 12:14:06,509 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:14:06,509 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 12:14:06,510 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:14:06,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:14:06,510 INFO L82 PathProgramCache]: Analyzing trace with hash -80921580, now seen corresponding path program 1 times [2018-10-27 12:14:06,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:14:06,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:14:06,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:14:06,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:14:06,512 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:14:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:14:07,002 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 12:14:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:14:07,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:14:07,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 12:14:07,390 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:14:07,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:14:07,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:14:07,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:14:07,393 INFO L87 Difference]: Start difference. First operand 4687 states and 7413 transitions. Second operand 6 states. [2018-10-27 12:14:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:14:36,607 INFO L93 Difference]: Finished difference Result 17869 states and 28883 transitions. [2018-10-27 12:14:36,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 12:14:36,608 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-10-27 12:14:36,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:14:36,673 INFO L225 Difference]: With dead ends: 17869 [2018-10-27 12:14:36,674 INFO L226 Difference]: Without dead ends: 13188 [2018-10-27 12:14:36,695 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 12:14:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2018-10-27 12:14:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 13117. [2018-10-27 12:14:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13117 states. [2018-10-27 12:14:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13117 states to 13117 states and 18720 transitions. [2018-10-27 12:14:37,236 INFO L78 Accepts]: Start accepts. Automaton has 13117 states and 18720 transitions. Word has length 99 [2018-10-27 12:14:37,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:14:37,236 INFO L481 AbstractCegarLoop]: Abstraction has 13117 states and 18720 transitions. [2018-10-27 12:14:37,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 12:14:37,238 INFO L276 IsEmpty]: Start isEmpty. Operand 13117 states and 18720 transitions. [2018-10-27 12:14:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-27 12:14:37,246 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:14:37,247 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:14:37,247 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:14:37,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:14:37,247 INFO L82 PathProgramCache]: Analyzing trace with hash -407489059, now seen corresponding path program 1 times [2018-10-27 12:14:37,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:14:37,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:14:37,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:14:37,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:14:37,250 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:14:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:14:37,540 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 12:14:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:14:37,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:14:37,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 12:14:37,580 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:14:37,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:14:37,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:14:37,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:14:37,581 INFO L87 Difference]: Start difference. First operand 13117 states and 18720 transitions. Second operand 6 states. [2018-10-27 12:15:02,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:02,000 INFO L93 Difference]: Finished difference Result 43719 states and 64680 transitions. [2018-10-27 12:15:02,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 12:15:02,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-27 12:15:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:15:02,135 INFO L225 Difference]: With dead ends: 43719 [2018-10-27 12:15:02,135 INFO L226 Difference]: Without dead ends: 30608 [2018-10-27 12:15:02,180 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 12:15:02,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30608 states. [2018-10-27 12:15:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30608 to 30445. [2018-10-27 12:15:02,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30445 states. [2018-10-27 12:15:02,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30445 states to 30445 states and 42900 transitions. [2018-10-27 12:15:02,836 INFO L78 Accepts]: Start accepts. Automaton has 30445 states and 42900 transitions. Word has length 101 [2018-10-27 12:15:02,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:15:02,837 INFO L481 AbstractCegarLoop]: Abstraction has 30445 states and 42900 transitions. [2018-10-27 12:15:02,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 12:15:02,837 INFO L276 IsEmpty]: Start isEmpty. Operand 30445 states and 42900 transitions. [2018-10-27 12:15:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-27 12:15:02,847 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:02,848 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 12:15:02,849 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:02,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:02,849 INFO L82 PathProgramCache]: Analyzing trace with hash -835408938, now seen corresponding path program 1 times [2018-10-27 12:15:02,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:02,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:02,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:02,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:02,852 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:15:03,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:15:03,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 12:15:03,360 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:15:03,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:15:03,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:15:03,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:15:03,361 INFO L87 Difference]: Start difference. First operand 30445 states and 42900 transitions. Second operand 6 states. [2018-10-27 12:15:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:28,342 INFO L93 Difference]: Finished difference Result 92650 states and 135461 transitions. [2018-10-27 12:15:28,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 12:15:28,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-10-27 12:15:28,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:15:28,553 INFO L225 Difference]: With dead ends: 92650 [2018-10-27 12:15:28,554 INFO L226 Difference]: Without dead ends: 62211 [2018-10-27 12:15:28,612 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-27 12:15:28,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62211 states. [2018-10-27 12:15:29,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62211 to 61795. [2018-10-27 12:15:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61795 states. [2018-10-27 12:15:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61795 states to 61795 states and 86992 transitions. [2018-10-27 12:15:29,743 INFO L78 Accepts]: Start accepts. Automaton has 61795 states and 86992 transitions. Word has length 109 [2018-10-27 12:15:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:15:29,743 INFO L481 AbstractCegarLoop]: Abstraction has 61795 states and 86992 transitions. [2018-10-27 12:15:29,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 12:15:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 61795 states and 86992 transitions. [2018-10-27 12:15:29,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-27 12:15:29,747 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:29,747 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 12:15:29,748 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:29,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:29,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1782950444, now seen corresponding path program 1 times [2018-10-27 12:15:29,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:29,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:29,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:29,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:29,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:15:29,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:15:29,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 12:15:29,969 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:15:29,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 12:15:29,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 12:15:29,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 12:15:29,971 INFO L87 Difference]: Start difference. First operand 61795 states and 86992 transitions. Second operand 5 states. [2018-10-27 12:16:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:16:01,898 INFO L93 Difference]: Finished difference Result 187427 states and 274287 transitions. [2018-10-27 12:16:01,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 12:16:01,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-10-27 12:16:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:16:02,287 INFO L225 Difference]: With dead ends: 187427 [2018-10-27 12:16:02,287 INFO L226 Difference]: Without dead ends: 125638 [2018-10-27 12:16:02,412 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 12:16:02,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125638 states. [2018-10-27 12:16:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125638 to 124309. [2018-10-27 12:16:04,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124309 states. [2018-10-27 12:16:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124309 states to 124309 states and 163462 transitions. [2018-10-27 12:16:05,115 INFO L78 Accepts]: Start accepts. Automaton has 124309 states and 163462 transitions. Word has length 129 [2018-10-27 12:16:05,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:16:05,115 INFO L481 AbstractCegarLoop]: Abstraction has 124309 states and 163462 transitions. [2018-10-27 12:16:05,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 12:16:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 124309 states and 163462 transitions. [2018-10-27 12:16:05,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-27 12:16:05,119 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:16:05,119 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 12:16:05,119 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:16:05,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:05,120 INFO L82 PathProgramCache]: Analyzing trace with hash 6483041, now seen corresponding path program 1 times [2018-10-27 12:16:05,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:16:05,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:05,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:16:05,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:05,121 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:16:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:16:05,393 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 12:16:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:16:05,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:16:05,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 12:16:05,826 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:16:05,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:16:05,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:16:05,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:16:05,827 INFO L87 Difference]: Start difference. First operand 124309 states and 163462 transitions. Second operand 6 states. [2018-10-27 12:16:24,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:16:24,303 INFO L93 Difference]: Finished difference Result 280776 states and 388674 transitions. [2018-10-27 12:16:24,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 12:16:24,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-10-27 12:16:24,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:16:24,867 INFO L225 Difference]: With dead ends: 280776 [2018-10-27 12:16:24,867 INFO L226 Difference]: Without dead ends: 156473 [2018-10-27 12:16:25,031 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 12:16:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156473 states. [2018-10-27 12:16:27,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156473 to 155530. [2018-10-27 12:16:27,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155530 states. [2018-10-27 12:16:28,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155530 states to 155530 states and 205308 transitions. [2018-10-27 12:16:28,237 INFO L78 Accepts]: Start accepts. Automaton has 155530 states and 205308 transitions. Word has length 192 [2018-10-27 12:16:28,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:16:28,237 INFO L481 AbstractCegarLoop]: Abstraction has 155530 states and 205308 transitions. [2018-10-27 12:16:28,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 12:16:28,237 INFO L276 IsEmpty]: Start isEmpty. Operand 155530 states and 205308 transitions. [2018-10-27 12:16:28,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2018-10-27 12:16:28,265 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:16:28,266 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:16:28,266 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:16:28,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:28,267 INFO L82 PathProgramCache]: Analyzing trace with hash -641973700, now seen corresponding path program 1 times [2018-10-27 12:16:28,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:16:28,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:28,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:16:28,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:28,268 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:16:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:16:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 250 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:16:29,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:16:29,007 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:16:29,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 835 with the following transitions: [2018-10-27 12:16:29,013 INFO L202 CegarAbsIntRunner]: [0], [1], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3116], [3127], [3131], [3135], [3146], [3150], [3154], [3158], [3169], [3173], [3184], [3188], [3192], [3196], [3200], [3204], [3208], [3212], [3216], [3220], [3224], [3228], [3232], [3236], [3240], [3251], [3255], [3259], [3263], [3267], [3271], [3275], [3279], [3283], [3287], [3291], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3361], [3365], [3376], [3380], [3384], [3395], [3399], [3403], [3407], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3449], [3454], [3456], [4195], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5144], [5148], [5152], [5156], [5167], [5171], [5175], [5179], [5183], [5187], [5191], [5195], [5199], [5203], [5207], [5211], [5215], [5219], [5223], [5225], [5226], [5227], [5234], [5242], [5250], [5254], [5256], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5342], [5344], [5347], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6420], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6833], [6834], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-10-27 12:16:29,100 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:16:29,100 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:16:29,950 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 12:16:31,099 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 12:16:31,101 INFO L272 AbstractInterpreter]: Visited 592 different actions 592 times. Never merged. Never widened. Never found a fixpoint. Largest state had 27 variables. [2018-10-27 12:16:31,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:31,142 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 12:16:34,084 INFO L227 lantSequenceWeakener]: Weakened 816 states. On average, predicates are now at 75.02% of their original sizes. [2018-10-27 12:16:34,084 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 12:16:34,893 INFO L415 sIntCurrentIteration]: We unified 833 AI predicates to 833 [2018-10-27 12:16:34,893 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 12:16:34,894 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:16:34,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2018-10-27 12:16:34,895 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:16:34,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-27 12:16:34,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-27 12:16:34,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-10-27 12:16:34,897 INFO L87 Difference]: Start difference. First operand 155530 states and 205308 transitions. Second operand 13 states. Received shutdown request... [2018-10-27 12:17:02,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-27 12:17:02,413 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 12:17:02,420 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 12:17:02,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:17:02 BoogieIcfgContainer [2018-10-27 12:17:02,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 12:17:02,421 INFO L168 Benchmark]: Toolchain (without parser) took 225128.12 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 819.8 MB in the end (delta: 587.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-27 12:17:02,423 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 12:17:02,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3469.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. [2018-10-27 12:17:02,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 775.11 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-27 12:17:02,429 INFO L168 Benchmark]: Boogie Preprocessor took 513.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2018-10-27 12:17:02,430 INFO L168 Benchmark]: RCFGBuilder took 18181.42 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 161.5 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.5 MB). Peak memory consumption was 676.9 MB. Max. memory is 7.1 GB. [2018-10-27 12:17:02,431 INFO L168 Benchmark]: TraceAbstraction took 202183.53 ms. Allocated memory was 2.6 GB in the beginning and 3.2 GB in the end (delta: 616.6 MB). Free memory was 1.7 GB in the beginning and 819.8 MB in the end (delta: 908.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-27 12:17:02,441 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3469.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 775.11 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 513.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18181.42 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 161.5 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.5 MB). Peak memory consumption was 676.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202183.53 ms. Allocated memory was 2.6 GB in the beginning and 3.2 GB in the end (delta: 616.6 MB). Free memory was 1.7 GB in the beginning and 819.8 MB in the end (delta: 908.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 76). Cancelled while BasicCegarLoop was constructing difference of abstraction (155530states) and FLOYD_HOARE automaton (currently 13 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (8213 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 202.0s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 183.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4468 SDtfs, 41501 SDslu, 4864 SDs, 0 SdLazy, 58797 SolverSat, 15397 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 140.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 893 GetRequests, 838 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155530occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9992277543428438 AbsIntWeakeningRatio, 0.04561824729891957 AbsIntAvgWeakeningVarsNumRemoved, 19.54501800720288 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 8.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 2961 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1491 NumberOfCodeBlocks, 1491 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1484 ConstructedInterpolants, 0 QuantifiedInterpolants, 1674551 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 350/352 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown