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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:00:50,024 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:00:50,027 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:00:50,047 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:00:50,047 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:00:50,048 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:00:50,053 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:00:50,057 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:00:50,060 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:00:50,061 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:00:50,063 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:00:50,068 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:00:50,069 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:00:50,070 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:00:50,077 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:00:50,078 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:00:50,081 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:00:50,083 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:00:50,091 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:00:50,092 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:00:50,097 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:00:50,098 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:00:50,100 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:00:50,101 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:00:50,101 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:00:50,102 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:00:50,103 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:00:50,104 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:00:50,104 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:00:50,106 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:00:50,106 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:00:50,106 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:00:50,107 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:00:50,107 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:00:50,108 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:00:50,108 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:00:50,109 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 21:00:50,124 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:00:50,125 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:00:50,125 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:00:50,126 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:00:50,126 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:00:50,126 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:00:50,126 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:00:50,126 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:00:50,127 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:00:50,127 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:00:50,127 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:00:50,127 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:00:50,128 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:00:50,128 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:00:50,129 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:00:50,129 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:00:50,129 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:00:50,129 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:00:50,129 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:00:50,130 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:00:50,130 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:00:50,130 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:00:50,130 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:00:50,130 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:00:50,131 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:00:50,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:00:50,131 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:00:50,131 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:00:50,131 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:00:50,132 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:00:50,132 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:00:50,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:00:50,132 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:00:50,132 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:00:50,133 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:00:50,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:00:50,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:00:50,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:00:50,220 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:00:50,221 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:00:50,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label17_true-unreach-call.c [2018-11-07 21:00:50,292 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10228ee58/7bd5d3c728b140dc98bcb72c7ed2da35/FLAGc10f40717 [2018-11-07 21:00:51,031 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:00:51,033 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label17_true-unreach-call.c [2018-11-07 21:00:51,062 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10228ee58/7bd5d3c728b140dc98bcb72c7ed2da35/FLAGc10f40717 [2018-11-07 21:00:51,081 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10228ee58/7bd5d3c728b140dc98bcb72c7ed2da35 [2018-11-07 21:00:51,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:00:51,096 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:00:51,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:00:51,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:00:51,105 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:00:51,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:00:51" (1/1) ... [2018-11-07 21:00:51,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de4c151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:51, skipping insertion in model container [2018-11-07 21:00:51,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:00:51" (1/1) ... [2018-11-07 21:00:51,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:00:51,242 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:00:52,239 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:00:52,244 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:00:52,656 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:00:52,682 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:00:52,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52 WrapperNode [2018-11-07 21:00:52,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:00:52,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:00:52,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:00:52,685 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:00:52,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:52,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:52,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:00:52,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:00:52,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:00:52,958 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:00:52,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:52,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:52,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:52,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:53,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:53,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:53,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... [2018-11-07 21:00:53,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:00:53,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:00:53,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:00:53,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:00:53,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:00:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:00:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:00:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:00:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:00:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:00:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:00:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:00:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:00:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:00:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:00:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:01:01,068 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:01:01,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:01:01 BoogieIcfgContainer [2018-11-07 21:01:01,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:01:01,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:01:01,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:01:01,074 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:01:01,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:00:51" (1/3) ... [2018-11-07 21:01:01,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81a26dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:01:01, skipping insertion in model container [2018-11-07 21:01:01,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:52" (2/3) ... [2018-11-07 21:01:01,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81a26dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:01:01, skipping insertion in model container [2018-11-07 21:01:01,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:01:01" (3/3) ... [2018-11-07 21:01:01,077 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label17_true-unreach-call.c [2018-11-07 21:01:01,088 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:01:01,098 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:01:01,117 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:01:01,161 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:01:01,161 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:01:01,161 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:01:01,161 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:01:01,162 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:01:01,162 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:01:01,162 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:01:01,162 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:01:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 21:01:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-07 21:01:01,209 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:01:01,211 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] [2018-11-07 21:01:01,213 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:01:01,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:01,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1741337806, now seen corresponding path program 1 times [2018-11-07 21:01:01,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:01:01,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:01,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:01,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:01,282 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:01:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:01,675 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 21:01:01,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:01:01,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:01:01,679 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:01:01,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:01:01,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:01:01,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:01:01,707 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 21:01:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:01:10,512 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-11-07 21:01:10,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:01:10,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2018-11-07 21:01:10,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:01:10,544 INFO L225 Difference]: With dead ends: 2133 [2018-11-07 21:01:10,544 INFO L226 Difference]: Without dead ends: 1523 [2018-11-07 21:01:10,554 INFO L604 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 [2018-11-07 21:01:10,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-11-07 21:01:10,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-11-07 21:01:10,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-11-07 21:01:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-11-07 21:01:10,738 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 45 [2018-11-07 21:01:10,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:01:10,740 INFO L480 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-11-07 21:01:10,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:01:10,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-11-07 21:01:10,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-11-07 21:01:10,751 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:01:10,752 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:10,755 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:01:10,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:10,755 INFO L82 PathProgramCache]: Analyzing trace with hash 2085909177, now seen corresponding path program 1 times [2018-11-07 21:01:10,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:01:10,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:10,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:10,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:10,757 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:01:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:11,304 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:01:11,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:01:11,304 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:01:11,305 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 121 with the following transitions: [2018-11-07 21:01:11,308 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:01:11,353 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:01:11,353 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:01:11,796 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:01:12,416 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:01:12,418 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 21:01:12,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:12,472 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:01:12,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:01:12,472 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 21:01:12,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:12,488 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:01:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:12,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:01:28,848 WARN L179 SmtUtils]: Spent 15.68 s on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2018-11-07 21:01:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:01:29,296 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:01:29,770 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-11-07 21:01:29,833 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-11-07 21:01:30,554 WARN L179 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-11-07 21:01:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:01:31,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 21:01:31,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-11-07 21:01:31,003 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:01:31,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:01:31,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:01:31,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-07 21:01:31,008 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-11-07 21:01:44,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:01:44,988 INFO L93 Difference]: Finished difference Result 5741 states and 8892 transitions. [2018-11-07 21:01:44,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 21:01:44,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-11-07 21:01:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:01:45,019 INFO L225 Difference]: With dead ends: 5741 [2018-11-07 21:01:45,019 INFO L226 Difference]: Without dead ends: 4231 [2018-11-07 21:01:45,030 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-07 21:01:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2018-11-07 21:01:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 4196. [2018-11-07 21:01:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4196 states. [2018-11-07 21:01:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 6323 transitions. [2018-11-07 21:01:45,176 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 6323 transitions. Word has length 120 [2018-11-07 21:01:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:01:45,177 INFO L480 AbstractCegarLoop]: Abstraction has 4196 states and 6323 transitions. [2018-11-07 21:01:45,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:01:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 6323 transitions. [2018-11-07 21:01:45,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-11-07 21:01:45,193 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:01:45,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:45,193 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:01:45,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:45,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1856812064, now seen corresponding path program 1 times [2018-11-07 21:01:45,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:01:45,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:45,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:45,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:45,200 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:01:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:01:45,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:01:45,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:01:45,587 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:01:45,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:01:45,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:01:45,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:01:45,588 INFO L87 Difference]: Start difference. First operand 4196 states and 6323 transitions. Second operand 6 states. [2018-11-07 21:01:50,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:01:50,244 INFO L93 Difference]: Finished difference Result 12515 states and 19754 transitions. [2018-11-07 21:01:50,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:01:50,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-11-07 21:01:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:01:50,306 INFO L225 Difference]: With dead ends: 12515 [2018-11-07 21:01:50,306 INFO L226 Difference]: Without dead ends: 8325 [2018-11-07 21:01:50,329 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:01:50,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8325 states. [2018-11-07 21:01:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8325 to 8256. [2018-11-07 21:01:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8256 states. [2018-11-07 21:01:50,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 11989 transitions. [2018-11-07 21:01:50,571 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 11989 transitions. Word has length 187 [2018-11-07 21:01:50,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:01:50,571 INFO L480 AbstractCegarLoop]: Abstraction has 8256 states and 11989 transitions. [2018-11-07 21:01:50,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:01:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 11989 transitions. [2018-11-07 21:01:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-11-07 21:01:50,578 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:01:50,578 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:01:50,578 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:01:50,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:50,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1605012379, now seen corresponding path program 1 times [2018-11-07 21:01:50,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:01:50,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:50,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:50,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:50,580 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:01:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:50,901 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:01:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 77 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-07 21:01:50,984 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:01:50,984 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:01:50,985 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-11-07 21:01:50,985 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1262], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:01:50,990 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:01:50,991 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:01:51,073 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:01:51,631 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:01:51,631 INFO L272 AbstractInterpreter]: Visited 92 different actions 262 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 21:01:51,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:51,669 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:01:51,669 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:01:51,669 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:01:51,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:51,684 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:01:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:51,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:01:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 149 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:01:52,056 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:01:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 149 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:01:52,349 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:01:52,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 21:01:52,349 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:01:52,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 21:01:52,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 21:01:52,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-07 21:01:52,351 INFO L87 Difference]: Start difference. First operand 8256 states and 11989 transitions. Second operand 9 states. [2018-11-07 21:01:59,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:01:59,031 INFO L93 Difference]: Finished difference Result 20072 states and 29365 transitions. [2018-11-07 21:01:59,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 21:01:59,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2018-11-07 21:01:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:01:59,100 INFO L225 Difference]: With dead ends: 20072 [2018-11-07 21:01:59,100 INFO L226 Difference]: Without dead ends: 11822 [2018-11-07 21:01:59,149 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 404 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-11-07 21:01:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11822 states. [2018-11-07 21:01:59,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11822 to 11799. [2018-11-07 21:01:59,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11799 states. [2018-11-07 21:01:59,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11799 states to 11799 states and 15117 transitions. [2018-11-07 21:01:59,495 INFO L78 Accepts]: Start accepts. Automaton has 11799 states and 15117 transitions. Word has length 203 [2018-11-07 21:01:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:01:59,497 INFO L480 AbstractCegarLoop]: Abstraction has 11799 states and 15117 transitions. [2018-11-07 21:01:59,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 21:01:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 11799 states and 15117 transitions. [2018-11-07 21:01:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-11-07 21:01:59,503 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:01:59,503 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:01:59,504 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:01:59,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:59,504 INFO L82 PathProgramCache]: Analyzing trace with hash -282876377, now seen corresponding path program 1 times [2018-11-07 21:01:59,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:01:59,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:59,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:59,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:01:59,506 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:01:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 110 proven. 46 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-07 21:02:00,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:02:00,028 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:02:00,028 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-11-07 21:02:00,029 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:02:00,033 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:02:00,033 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:02:00,181 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:02:00,962 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:02:00,962 INFO L272 AbstractInterpreter]: Visited 97 different actions 381 times. Merged at 7 different actions 28 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 21:02:00,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:00,998 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:02:00,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:02:00,998 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:02:01,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:01,016 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:02:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:01,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:02:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 21:02:01,213 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:02:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 21:02:01,350 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:02:01,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 21:02:01,350 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:02:01,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:02:01,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:02:01,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:02:01,352 INFO L87 Difference]: Start difference. First operand 11799 states and 15117 transitions. Second operand 3 states. [2018-11-07 21:02:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:02:04,267 INFO L93 Difference]: Finished difference Result 23592 states and 30228 transitions. [2018-11-07 21:02:04,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:02:04,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2018-11-07 21:02:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:02:04,312 INFO L225 Difference]: With dead ends: 23592 [2018-11-07 21:02:04,312 INFO L226 Difference]: Without dead ends: 11799 [2018-11-07 21:02:04,363 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 440 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:02:04,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11799 states. [2018-11-07 21:02:04,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11799 to 11799. [2018-11-07 21:02:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11799 states. [2018-11-07 21:02:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11799 states to 11799 states and 14360 transitions. [2018-11-07 21:02:04,598 INFO L78 Accepts]: Start accepts. Automaton has 11799 states and 14360 transitions. Word has length 220 [2018-11-07 21:02:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:02:04,599 INFO L480 AbstractCegarLoop]: Abstraction has 11799 states and 14360 transitions. [2018-11-07 21:02:04,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:02:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 11799 states and 14360 transitions. [2018-11-07 21:02:04,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-11-07 21:02:04,607 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:02:04,607 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:02:04,607 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:02:04,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:04,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1607590703, now seen corresponding path program 1 times [2018-11-07 21:02:04,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:02:04,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:04,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:04,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:04,609 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:02:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-07 21:02:05,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:02:05,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:02:05,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:02:05,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:02:05,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:02:05,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:02:05,187 INFO L87 Difference]: Start difference. First operand 11799 states and 14360 transitions. Second operand 4 states. [2018-11-07 21:02:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:02:11,319 INFO L93 Difference]: Finished difference Result 31548 states and 38948 transitions. [2018-11-07 21:02:11,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:02:11,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 275 [2018-11-07 21:02:11,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:02:11,398 INFO L225 Difference]: With dead ends: 31548 [2018-11-07 21:02:11,398 INFO L226 Difference]: Without dead ends: 19755 [2018-11-07 21:02:11,428 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:02:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19755 states. [2018-11-07 21:02:11,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19755 to 19742. [2018-11-07 21:02:11,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19742 states. [2018-11-07 21:02:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19742 states to 19742 states and 23487 transitions. [2018-11-07 21:02:11,821 INFO L78 Accepts]: Start accepts. Automaton has 19742 states and 23487 transitions. Word has length 275 [2018-11-07 21:02:11,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:02:11,823 INFO L480 AbstractCegarLoop]: Abstraction has 19742 states and 23487 transitions. [2018-11-07 21:02:11,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:02:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 19742 states and 23487 transitions. [2018-11-07 21:02:11,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-11-07 21:02:11,838 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:02:11,838 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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 21:02:11,838 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:02:11,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:11,839 INFO L82 PathProgramCache]: Analyzing trace with hash -25254690, now seen corresponding path program 1 times [2018-11-07 21:02:11,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:02:11,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:11,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:11,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:11,840 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:02:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 290 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 21:02:12,485 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:02:12,485 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:02:12,485 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 320 with the following transitions: [2018-11-07 21:02:12,486 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1333], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:02:12,491 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:02:12,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:02:12,576 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:02:13,997 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:02:13,997 INFO L272 AbstractInterpreter]: Visited 109 different actions 644 times. Merged at 8 different actions 47 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 21:02:14,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:14,036 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:02:14,036 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:02:14,036 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:02:14,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:14,048 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:02:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:14,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:02:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 290 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 21:02:14,361 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:02:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 290 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 21:02:15,114 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:02:15,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-11-07 21:02:15,115 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:02:15,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 21:02:15,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 21:02:15,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:02:15,116 INFO L87 Difference]: Start difference. First operand 19742 states and 23487 transitions. Second operand 7 states. [2018-11-07 21:02:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:02:23,515 INFO L93 Difference]: Finished difference Result 53241 states and 64833 transitions. [2018-11-07 21:02:23,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 21:02:23,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2018-11-07 21:02:23,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:02:23,616 INFO L225 Difference]: With dead ends: 53241 [2018-11-07 21:02:23,616 INFO L226 Difference]: Without dead ends: 30380 [2018-11-07 21:02:23,675 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 640 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-11-07 21:02:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30380 states. [2018-11-07 21:02:24,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30380 to 28535. [2018-11-07 21:02:24,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28535 states. [2018-11-07 21:02:24,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28535 states to 28535 states and 32996 transitions. [2018-11-07 21:02:24,217 INFO L78 Accepts]: Start accepts. Automaton has 28535 states and 32996 transitions. Word has length 319 [2018-11-07 21:02:24,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:02:24,218 INFO L480 AbstractCegarLoop]: Abstraction has 28535 states and 32996 transitions. [2018-11-07 21:02:24,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 21:02:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand 28535 states and 32996 transitions. [2018-11-07 21:02:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-11-07 21:02:24,239 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:02:24,239 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:02:24,240 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:02:24,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:24,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1822386049, now seen corresponding path program 1 times [2018-11-07 21:02:24,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:02:24,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:24,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:24,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:24,241 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:02:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-07 21:02:24,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:02:24,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:02:24,707 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:02:24,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:02:24,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:02:24,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:02:24,708 INFO L87 Difference]: Start difference. First operand 28535 states and 32996 transitions. Second operand 4 states. [2018-11-07 21:02:29,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:02:29,962 INFO L93 Difference]: Finished difference Result 92761 states and 109909 transitions. [2018-11-07 21:02:29,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:02:29,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2018-11-07 21:02:29,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:02:30,190 INFO L225 Difference]: With dead ends: 92761 [2018-11-07 21:02:30,191 INFO L226 Difference]: Without dead ends: 64237 [2018-11-07 21:02:30,262 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:02:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64237 states. [2018-11-07 21:02:31,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64237 to 62492. [2018-11-07 21:02:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62492 states. [2018-11-07 21:02:31,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62492 states to 62492 states and 71858 transitions. [2018-11-07 21:02:31,777 INFO L78 Accepts]: Start accepts. Automaton has 62492 states and 71858 transitions. Word has length 332 [2018-11-07 21:02:31,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:02:31,778 INFO L480 AbstractCegarLoop]: Abstraction has 62492 states and 71858 transitions. [2018-11-07 21:02:31,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:02:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 62492 states and 71858 transitions. [2018-11-07 21:02:31,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2018-11-07 21:02:31,872 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:02:31,873 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 21:02:31,873 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:02:31,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:31,874 INFO L82 PathProgramCache]: Analyzing trace with hash 653349445, now seen corresponding path program 1 times [2018-11-07 21:02:31,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:02:31,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:31,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:31,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:31,875 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:02:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-07 21:02:32,487 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:02:32,487 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:02:32,488 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 516 with the following transitions: [2018-11-07 21:02:32,489 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [44], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1239], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:02:32,500 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:02:32,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:02:32,562 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:02:35,692 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:02:35,692 INFO L272 AbstractInterpreter]: Visited 313 different actions 1558 times. Merged at 8 different actions 42 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 21:02:35,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:35,701 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:02:35,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:02:35,701 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:02:35,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:35,710 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:02:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:35,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:02:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-07 21:02:36,179 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:02:36,690 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-07 21:02:36,713 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:02:36,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2018-11-07 21:02:36,714 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:02:36,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:02:36,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:02:36,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 21:02:36,716 INFO L87 Difference]: Start difference. First operand 62492 states and 71858 transitions. Second operand 6 states. [2018-11-07 21:02:43,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:02:43,734 INFO L93 Difference]: Finished difference Result 135605 states and 157675 transitions. [2018-11-07 21:02:43,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 21:02:43,734 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 515 [2018-11-07 21:02:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:02:43,869 INFO L225 Difference]: With dead ends: 135605 [2018-11-07 21:02:43,869 INFO L226 Difference]: Without dead ends: 64616 [2018-11-07 21:02:43,962 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1045 GetRequests, 1031 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-07 21:02:44,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64616 states. [2018-11-07 21:02:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64616 to 59822. [2018-11-07 21:02:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59822 states. [2018-11-07 21:02:44,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59822 states to 59822 states and 68717 transitions. [2018-11-07 21:02:44,880 INFO L78 Accepts]: Start accepts. Automaton has 59822 states and 68717 transitions. Word has length 515 [2018-11-07 21:02:44,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:02:44,881 INFO L480 AbstractCegarLoop]: Abstraction has 59822 states and 68717 transitions. [2018-11-07 21:02:44,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:02:44,881 INFO L276 IsEmpty]: Start isEmpty. Operand 59822 states and 68717 transitions. [2018-11-07 21:02:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2018-11-07 21:02:44,939 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:02:44,940 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 21:02:44,940 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:02:44,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash 4177906, now seen corresponding path program 1 times [2018-11-07 21:02:44,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:02:44,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:44,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:02:44,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:02:44,942 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:02:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:02:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 7 proven. 128 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-11-07 21:02:45,986 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:02:45,986 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:02:45,986 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 547 with the following transitions: [2018-11-07 21:02:45,987 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [44], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:02:45,993 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:02:45,993 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:02:46,049 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:02:48,309 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:02:48,309 INFO L272 AbstractInterpreter]: Visited 312 different actions 1232 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 21:02:48,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:02:48,322 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:02:49,290 INFO L227 lantSequenceWeakener]: Weakened 543 states. On average, predicates are now at 77.41% of their original sizes. [2018-11-07 21:02:49,291 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:02:49,573 INFO L415 sIntCurrentIteration]: We unified 545 AI predicates to 545 [2018-11-07 21:02:49,574 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:02:49,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:02:49,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [11] total 24 [2018-11-07 21:02:49,575 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:02:49,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 21:02:49,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 21:02:49,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-11-07 21:02:49,578 INFO L87 Difference]: Start difference. First operand 59822 states and 68717 transitions. Second operand 15 states. [2018-11-07 21:03:43,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:03:43,880 INFO L93 Difference]: Finished difference Result 132193 states and 151231 transitions. [2018-11-07 21:03:43,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-07 21:03:43,880 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 546 [2018-11-07 21:03:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:03:44,018 INFO L225 Difference]: With dead ends: 132193 [2018-11-07 21:03:44,018 INFO L226 Difference]: Without dead ends: 72382 [2018-11-07 21:03:44,071 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 562 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2018-11-07 21:03:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72382 states. [2018-11-07 21:03:44,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72382 to 68548. [2018-11-07 21:03:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68548 states. [2018-11-07 21:03:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68548 states to 68548 states and 78376 transitions. [2018-11-07 21:03:44,890 INFO L78 Accepts]: Start accepts. Automaton has 68548 states and 78376 transitions. Word has length 546 [2018-11-07 21:03:44,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:03:44,891 INFO L480 AbstractCegarLoop]: Abstraction has 68548 states and 78376 transitions. [2018-11-07 21:03:44,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 21:03:44,892 INFO L276 IsEmpty]: Start isEmpty. Operand 68548 states and 78376 transitions. [2018-11-07 21:03:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2018-11-07 21:03:44,922 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:03:44,923 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 21:03:44,923 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:03:44,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:03:44,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1479663146, now seen corresponding path program 1 times [2018-11-07 21:03:44,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:03:44,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:03:44,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:03:44,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:03:44,925 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:03:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:03:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 129 proven. 167 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-11-07 21:03:45,569 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:03:45,569 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:03:45,569 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 552 with the following transitions: [2018-11-07 21:03:45,570 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [45], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [115], [119], [123], [127], [138], [142], [146], [150], [153], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1302], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:03:45,575 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:03:45,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:03:45,624 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:03:48,500 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:03:48,500 INFO L272 AbstractInterpreter]: Visited 335 different actions 2326 times. Merged at 8 different actions 53 times. Widened at 1 different actions 2 times. Found 11 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 21:03:48,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:03:48,505 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:03:48,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:03:48,505 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:03:48,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:03:48,516 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:03:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:03:48,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:03:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 129 proven. 6 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-07 21:03:49,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:03:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 129 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:03:50,454 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:03:50,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 20 [2018-11-07 21:03:50,455 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:03:50,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-07 21:03:50,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-07 21:03:50,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-11-07 21:03:50,457 INFO L87 Difference]: Start difference. First operand 68548 states and 78376 transitions. Second operand 12 states. [2018-11-07 21:04:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:04:06,459 INFO L93 Difference]: Finished difference Result 194323 states and 230312 transitions. [2018-11-07 21:04:06,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-07 21:04:06,459 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 551 [2018-11-07 21:04:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:04:06,867 INFO L225 Difference]: With dead ends: 194323 [2018-11-07 21:04:06,867 INFO L226 Difference]: Without dead ends: 121746 [2018-11-07 21:04:06,996 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1136 GetRequests, 1097 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=435, Invalid=1047, Unknown=0, NotChecked=0, Total=1482 [2018-11-07 21:04:07,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121746 states. [2018-11-07 21:04:09,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121746 to 113230. [2018-11-07 21:04:09,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113230 states. [2018-11-07 21:04:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113230 states to 113230 states and 132535 transitions. [2018-11-07 21:04:09,282 INFO L78 Accepts]: Start accepts. Automaton has 113230 states and 132535 transitions. Word has length 551 [2018-11-07 21:04:09,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:04:09,283 INFO L480 AbstractCegarLoop]: Abstraction has 113230 states and 132535 transitions. [2018-11-07 21:04:09,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-07 21:04:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 113230 states and 132535 transitions. [2018-11-07 21:04:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2018-11-07 21:04:09,334 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:04:09,335 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-07 21:04:09,335 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:04:09,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:04:09,335 INFO L82 PathProgramCache]: Analyzing trace with hash -656961585, now seen corresponding path program 1 times [2018-11-07 21:04:09,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:04:09,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:04:09,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:04:09,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:04:09,337 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:04:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:04:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 5 proven. 347 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2018-11-07 21:04:10,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:04:10,489 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:04:10,489 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 627 with the following transitions: [2018-11-07 21:04:10,490 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [44], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1356], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:04:10,494 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:04:10,495 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:04:10,540 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:04:13,278 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:04:13,278 INFO L272 AbstractInterpreter]: Visited 314 different actions 2205 times. Merged at 9 different actions 78 times. Widened at 1 different actions 3 times. Found 18 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 21:04:13,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:04:13,287 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:04:13,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:04:13,287 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:04:13,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:04:13,297 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:04:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:04:13,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:04:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 400 proven. 36 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-11-07 21:04:13,977 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:04:15,012 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-11-07 21:04:15,033 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:04:15,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 18 [2018-11-07 21:04:15,033 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:04:15,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 21:04:15,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 21:04:15,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-11-07 21:04:15,035 INFO L87 Difference]: Start difference. First operand 113230 states and 132535 transitions. Second operand 15 states. Received shutdown request... [2018-11-07 21:04:26,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-11-07 21:04:26,451 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:04:26,456 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:04:26,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:04:26 BoogieIcfgContainer [2018-11-07 21:04:26,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:04:26,457 INFO L168 Benchmark]: Toolchain (without parser) took 215362.34 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.3 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 21:04:26,459 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 21:04:26,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1586.23 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:04:26,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 273.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -968.0 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:04:26,461 INFO L168 Benchmark]: Boogie Preprocessor took 220.91 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:04:26,462 INFO L168 Benchmark]: RCFGBuilder took 7890.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 464.9 MB). Peak memory consumption was 464.9 MB. Max. memory is 7.1 GB. [2018-11-07 21:04:26,462 INFO L168 Benchmark]: TraceAbstraction took 205386.41 ms. Allocated memory was 2.3 GB in the beginning and 5.9 GB in the end (delta: 3.5 GB). Free memory was 1.8 GB in the beginning and 3.7 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 21:04:26,467 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1586.23 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 273.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -968.0 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 220.91 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7890.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 464.9 MB). Peak memory consumption was 464.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205386.41 ms. Allocated memory was 2.3 GB in the beginning and 5.9 GB in the end (delta: 3.5 GB). Free memory was 1.8 GB in the beginning and 3.7 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 122]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 122). Cancelled while BasicCegarLoop was constructing difference of abstraction (113230states) and FLOYD_HOARE automaton (currently 45 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (19024 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 205.3s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 147.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4353 SDtfs, 29696 SDslu, 4312 SDs, 0 SdLazy, 53950 SolverSat, 9529 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 5878 GetRequests, 5669 SyntacticMatches, 24 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 23.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113230occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.6s AbstIntTime, 8 AbstIntIterations, 1 AbstIntStrong, 0.9979121023903632 AbsIntWeakeningRatio, 0.06788990825688074 AbsIntAvgWeakeningVarsNumRemoved, 22.06605504587156 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 20881 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 29.3s InterpolantComputationTime, 6493 NumberOfCodeBlocks, 6493 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 9021 ConstructedInterpolants, 212 QuantifiedInterpolants, 16253069 SizeOfPredicates, 10 NumberOfNonLiveVariables, 4141 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 26 InterpolantComputations, 7 PerfectInterpolantSequences, 6174/7255 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown