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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 11:44:48,095 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 11:44:48,098 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 11:44:48,118 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 11:44:48,118 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 11:44:48,119 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 11:44:48,122 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 11:44:48,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 11:44:48,129 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 11:44:48,130 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 11:44:48,131 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 11:44:48,131 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 11:44:48,135 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 11:44:48,136 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 11:44:48,137 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 11:44:48,141 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 11:44:48,142 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 11:44:48,145 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 11:44:48,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 11:44:48,150 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 11:44:48,153 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 11:44:48,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 11:44:48,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 11:44:48,159 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 11:44:48,160 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 11:44:48,160 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 11:44:48,162 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 11:44:48,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 11:44:48,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 11:44:48,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 11:44:48,169 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 11:44:48,170 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 11:44:48,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 11:44:48,170 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 11:44:48,173 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 11:44:48,174 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 11:44:48,174 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.epf [2018-11-07 11:44:48,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 11:44:48,190 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 11:44:48,191 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 11:44:48,191 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 11:44:48,191 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 11:44:48,191 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 11:44:48,192 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 11:44:48,192 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 11:44:48,192 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 11:44:48,192 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 11:44:48,192 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 11:44:48,192 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 11:44:48,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 11:44:48,193 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 11:44:48,194 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 11:44:48,194 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 11:44:48,194 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 11:44:48,194 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 11:44:48,194 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 11:44:48,194 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 11:44:48,195 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 11:44:48,195 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 11:44:48,195 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 11:44:48,195 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 11:44:48,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 11:44:48,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 11:44:48,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 11:44:48,196 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 11:44:48,196 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 11:44:48,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 11:44:48,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 11:44:48,197 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 11:44:48,197 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 11:44:48,197 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 11:44:48,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 11:44:48,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 11:44:48,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 11:44:48,260 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 11:44:48,260 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 11:44:48,261 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c [2018-11-07 11:44:48,326 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5a5fd7ad/a828ba3709b44ecba14e53908cd841cc/FLAG4525ae5b0 [2018-11-07 11:44:48,959 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 11:44:48,962 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c [2018-11-07 11:44:48,979 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5a5fd7ad/a828ba3709b44ecba14e53908cd841cc/FLAG4525ae5b0 [2018-11-07 11:44:49,001 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5a5fd7ad/a828ba3709b44ecba14e53908cd841cc [2018-11-07 11:44:49,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 11:44:49,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 11:44:49,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 11:44:49,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 11:44:49,026 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 11:44:49,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:49,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4688d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49, skipping insertion in model container [2018-11-07 11:44:49,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:49,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 11:44:49,120 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 11:44:49,685 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 11:44:49,690 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 11:44:49,846 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 11:44:49,865 INFO L193 MainTranslator]: Completed translation [2018-11-07 11:44:49,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49 WrapperNode [2018-11-07 11:44:49,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 11:44:49,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 11:44:49,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 11:44:49,867 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 11:44:49,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 11:44:50,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 11:44:50,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 11:44:50,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 11:44:50,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (1/1) ... [2018-11-07 11:44:50,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 11:44:50,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 11:44:50,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 11:44:50,215 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 11:44:50,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (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 11:44:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 11:44:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 11:44:50,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 11:44:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 11:44:50,293 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 11:44:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 11:44:50,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 11:44:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 11:44:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 11:44:55,035 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 11:44:55,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:44:55 BoogieIcfgContainer [2018-11-07 11:44:55,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 11:44:55,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 11:44:55,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 11:44:55,042 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 11:44:55,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:44:49" (1/3) ... [2018-11-07 11:44:55,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11154e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:44:55, skipping insertion in model container [2018-11-07 11:44:55,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:49" (2/3) ... [2018-11-07 11:44:55,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11154e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:44:55, skipping insertion in model container [2018-11-07 11:44:55,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:44:55" (3/3) ... [2018-11-07 11:44:55,046 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label51_false-unreach-call.c [2018-11-07 11:44:55,056 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 11:44:55,064 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 11:44:55,079 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 11:44:55,119 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 11:44:55,119 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 11:44:55,119 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 11:44:55,120 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 11:44:55,120 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 11:44:55,120 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 11:44:55,120 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 11:44:55,120 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 11:44:55,152 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 11:44:55,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-07 11:44:55,159 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 11:44:55,160 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 11:44:55,162 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 11:44:55,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 11:44:55,168 INFO L82 PathProgramCache]: Analyzing trace with hash 697929684, now seen corresponding path program 1 times [2018-11-07 11:44:55,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 11:44:55,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:44:55,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 11:44:55,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:44:55,216 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 11:44:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 11:44:55,567 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 11:44:55,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 11:44:55,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 11:44:55,570 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 11:44:55,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 11:44:55,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 11:44:55,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 11:44:55,597 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 11:44:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 11:44:59,691 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-11-07 11:44:59,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 11:44:59,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-07 11:44:59,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 11:44:59,716 INFO L225 Difference]: With dead ends: 979 [2018-11-07 11:44:59,716 INFO L226 Difference]: Without dead ends: 680 [2018-11-07 11:44:59,726 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 11:44:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-11-07 11:44:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-11-07 11:44:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-11-07 11:44:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-11-07 11:44:59,820 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 18 [2018-11-07 11:44:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 11:44:59,821 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-11-07 11:44:59,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 11:44:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-11-07 11:44:59,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-07 11:44:59,827 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 11:44:59,828 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 11:44:59,828 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 11:44:59,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 11:44:59,829 INFO L82 PathProgramCache]: Analyzing trace with hash 796033475, now seen corresponding path program 1 times [2018-11-07 11:44:59,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 11:44:59,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:44:59,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 11:44:59,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:44:59,831 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 11:44:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 11:45:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 11:45:00,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 11:45:00,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 11:45:00,180 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 11:45:00,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 11:45:00,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 11:45:00,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 11:45:00,183 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-11-07 11:45:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 11:45:04,008 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-11-07 11:45:04,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 11:45:04,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-11-07 11:45:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 11:45:04,029 INFO L225 Difference]: With dead ends: 1555 [2018-11-07 11:45:04,029 INFO L226 Difference]: Without dead ends: 1077 [2018-11-07 11:45:04,036 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 11:45:04,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-11-07 11:45:04,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-11-07 11:45:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-11-07 11:45:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-11-07 11:45:04,121 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 91 [2018-11-07 11:45:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 11:45:04,122 INFO L480 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-11-07 11:45:04,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 11:45:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-11-07 11:45:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-07 11:45:04,126 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 11:45:04,127 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 11:45:04,127 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 11:45:04,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 11:45:04,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1422670888, now seen corresponding path program 1 times [2018-11-07 11:45:04,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 11:45:04,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:45:04,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 11:45:04,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:45:04,131 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 11:45:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 11:45:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 11:45:04,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 11:45:04,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 11:45:04,358 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 11:45:04,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 11:45:04,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 11:45:04,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 11:45:04,361 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-11-07 11:45:07,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 11:45:07,246 INFO L93 Difference]: Finished difference Result 2906 states and 4462 transitions. [2018-11-07 11:45:07,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 11:45:07,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-11-07 11:45:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 11:45:07,264 INFO L225 Difference]: With dead ends: 2906 [2018-11-07 11:45:07,264 INFO L226 Difference]: Without dead ends: 1849 [2018-11-07 11:45:07,274 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 11:45:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2018-11-07 11:45:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1647. [2018-11-07 11:45:07,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1647 states. [2018-11-07 11:45:07,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2425 transitions. [2018-11-07 11:45:07,345 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2425 transitions. Word has length 92 [2018-11-07 11:45:07,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 11:45:07,346 INFO L480 AbstractCegarLoop]: Abstraction has 1647 states and 2425 transitions. [2018-11-07 11:45:07,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 11:45:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2425 transitions. [2018-11-07 11:45:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-07 11:45:07,349 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 11:45:07,349 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 11:45:07,349 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 11:45:07,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 11:45:07,350 INFO L82 PathProgramCache]: Analyzing trace with hash 769801183, now seen corresponding path program 1 times [2018-11-07 11:45:07,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 11:45:07,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:45:07,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 11:45:07,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:45:07,351 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 11:45:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 11:45:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 11:45:07,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 11:45:07,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-07 11:45:07,865 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 11:45:07,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 11:45:07,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 11:45:07,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 11:45:07,866 INFO L87 Difference]: Start difference. First operand 1647 states and 2425 transitions. Second operand 7 states. [2018-11-07 11:45:12,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 11:45:12,297 INFO L93 Difference]: Finished difference Result 4751 states and 7313 transitions. [2018-11-07 11:45:12,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 11:45:12,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-11-07 11:45:12,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 11:45:12,319 INFO L225 Difference]: With dead ends: 4751 [2018-11-07 11:45:12,320 INFO L226 Difference]: Without dead ends: 2915 [2018-11-07 11:45:12,334 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-07 11:45:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2018-11-07 11:45:12,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2760. [2018-11-07 11:45:12,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2760 states. [2018-11-07 11:45:12,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3963 transitions. [2018-11-07 11:45:12,448 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3963 transitions. Word has length 93 [2018-11-07 11:45:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 11:45:12,449 INFO L480 AbstractCegarLoop]: Abstraction has 2760 states and 3963 transitions. [2018-11-07 11:45:12,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 11:45:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3963 transitions. [2018-11-07 11:45:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-07 11:45:12,461 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 11:45:12,464 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:45:12,465 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 11:45:12,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 11:45:12,465 INFO L82 PathProgramCache]: Analyzing trace with hash 603688054, now seen corresponding path program 1 times [2018-11-07 11:45:12,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 11:45:12,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:45:12,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 11:45:12,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 11:45:12,468 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 11:45:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 11:45:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 11:45:13,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 11:45:13,215 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 11:45:13,217 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-07 11:45:13,225 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [45], [47], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 11:45:13,321 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 11:45:13,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 11:45:14,057 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 11:45:16,090 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 11:45:16,095 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 11:45:16,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 11:45:16,146 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 11:45:16,968 INFO L227 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 72.99% of their original sizes. [2018-11-07 11:45:16,968 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 11:45:17,867 INFO L415 sIntCurrentIteration]: We unified 209 AI predicates to 209 [2018-11-07 11:45:17,868 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 11:45:17,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 11:45:17,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 11:45:17,869 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 11:45:17,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 11:45:17,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 11:45:17,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 11:45:17,871 INFO L87 Difference]: Start difference. First operand 2760 states and 3963 transitions. Second operand 11 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown