java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label36_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 12:05:14,106 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 12:05:14,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 12:05:14,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 12:05:14,128 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 12:05:14,129 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 12:05:14,130 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 12:05:14,132 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 12:05:14,133 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 12:05:14,134 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 12:05:14,135 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 12:05:14,135 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 12:05:14,136 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 12:05:14,137 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 12:05:14,138 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 12:05:14,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 12:05:14,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 12:05:14,141 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 12:05:14,143 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 12:05:14,145 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 12:05:14,148 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 12:05:14,149 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 12:05:14,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 12:05:14,163 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 12:05:14,163 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 12:05:14,164 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 12:05:14,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 12:05:14,165 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 12:05:14,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 12:05:14,195 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 12:05:14,196 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 12:05:14,196 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 12:05:14,197 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 12:05:14,197 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 12:05:14,197 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 12:05:14,197 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 12:05:14,197 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 12:05:14,198 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 12:05:14,198 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 12:05:14,198 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 12:05:14,199 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 12:05:14,199 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 12:05:14,199 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 12:05:14,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 12:05:14,200 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 12:05:14,200 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 12:05:14,200 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 12:05:14,200 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 12:05:14,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 12:05:14,201 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 12:05:14,201 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 12:05:14,201 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 12:05:14,201 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 12:05:14,202 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 12:05:14,202 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 12:05:14,202 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 12:05:14,202 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 12:05:14,202 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 12:05:14,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 12:05:14,203 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 12:05:14,203 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 12:05:14,203 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 12:05:14,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 12:05:14,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 12:05:14,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 12:05:14,307 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 12:05:14,308 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 12:05:14,308 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label36_false-unreach-call.c [2018-10-27 12:05:14,367 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b9e9e8a5a/1125eef9f14f4953afe6db88ecaa628b/FLAGef3555a21 [2018-10-27 12:05:15,110 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 12:05:15,111 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label36_false-unreach-call.c [2018-10-27 12:05:15,142 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b9e9e8a5a/1125eef9f14f4953afe6db88ecaa628b/FLAGef3555a21 [2018-10-27 12:05:15,163 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b9e9e8a5a/1125eef9f14f4953afe6db88ecaa628b [2018-10-27 12:05:15,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 12:05:15,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 12:05:15,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 12:05:15,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 12:05:15,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 12:05:15,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:05:15" (1/1) ... [2018-10-27 12:05:15,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa98528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:15, skipping insertion in model container [2018-10-27 12:05:15,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:05:15" (1/1) ... [2018-10-27 12:05:15,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 12:05:15,342 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 12:05:16,311 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:05:16,317 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 12:05:16,775 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:05:16,806 INFO L193 MainTranslator]: Completed translation [2018-10-27 12:05:16,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16 WrapperNode [2018-10-27 12:05:16,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 12:05:16,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 12:05:16,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 12:05:16,809 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 12:05:16,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:16,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 12:05:17,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 12:05:17,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 12:05:17,249 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 12:05:17,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... [2018-10-27 12:05:17,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 12:05:17,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 12:05:17,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 12:05:17,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 12:05:17,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 12:05:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 12:05:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 12:05:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 12:05:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 12:05:17,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 12:05:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 12:05:17,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 12:05:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 12:05:17,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 12:05:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 12:05:17,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 12:05:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 12:05:26,074 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 12:05:26,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:05:26 BoogieIcfgContainer [2018-10-27 12:05:26,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 12:05:26,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 12:05:26,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 12:05:26,081 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 12:05:26,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:05:15" (1/3) ... [2018-10-27 12:05:26,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0c703a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:05:26, skipping insertion in model container [2018-10-27 12:05:26,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:05:16" (2/3) ... [2018-10-27 12:05:26,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0c703a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:05:26, skipping insertion in model container [2018-10-27 12:05:26,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:05:26" (3/3) ... [2018-10-27 12:05:26,084 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label36_false-unreach-call.c [2018-10-27 12:05:26,093 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 12:05:26,102 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 12:05:26,117 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 12:05:26,160 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 12:05:26,161 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 12:05:26,161 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 12:05:26,161 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 12:05:26,161 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 12:05:26,161 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 12:05:26,162 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 12:05:26,162 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 12:05:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 12:05:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-27 12:05:26,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:05:26,211 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] [2018-10-27 12:05:26,213 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:05:26,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:05:26,220 INFO L82 PathProgramCache]: Analyzing trace with hash -966546412, now seen corresponding path program 1 times [2018-10-27 12:05:26,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:05:26,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:26,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:05:26,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:26,280 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:05:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:05:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:05:26,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:05:26,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 12:05:26,719 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:05:26,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 12:05:26,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 12:05:26,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 12:05:26,746 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-10-27 12:05:37,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:05:37,449 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-10-27 12:05:37,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 12:05:37,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-27 12:05:37,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:05:37,491 INFO L225 Difference]: With dead ends: 2974 [2018-10-27 12:05:37,491 INFO L226 Difference]: Without dead ends: 2193 [2018-10-27 12:05:37,504 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 12:05:37,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-10-27 12:05:37,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-10-27 12:05:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-10-27 12:05:37,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3677 transitions. [2018-10-27 12:05:37,697 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3677 transitions. Word has length 34 [2018-10-27 12:05:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:05:37,699 INFO L481 AbstractCegarLoop]: Abstraction has 2193 states and 3677 transitions. [2018-10-27 12:05:37,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 12:05:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3677 transitions. [2018-10-27 12:05:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-27 12:05:37,711 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:05:37,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:05:37,712 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:05:37,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:05:37,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1770291326, now seen corresponding path program 1 times [2018-10-27 12:05:37,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:05:37,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:37,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:05:37,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:37,715 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:05:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:05:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:05:38,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:05:38,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 12:05:38,058 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:05:38,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 12:05:38,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 12:05:38,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 12:05:38,062 INFO L87 Difference]: Start difference. First operand 2193 states and 3677 transitions. Second operand 5 states. [2018-10-27 12:05:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:05:47,515 INFO L93 Difference]: Finished difference Result 6600 states and 11248 transitions. [2018-10-27 12:05:47,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 12:05:47,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-10-27 12:05:47,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:05:47,556 INFO L225 Difference]: With dead ends: 6600 [2018-10-27 12:05:47,557 INFO L226 Difference]: Without dead ends: 4413 [2018-10-27 12:05:47,566 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 12:05:47,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-10-27 12:05:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-10-27 12:05:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-10-27 12:05:47,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6986 transitions. [2018-10-27 12:05:47,722 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6986 transitions. Word has length 104 [2018-10-27 12:05:47,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:05:47,723 INFO L481 AbstractCegarLoop]: Abstraction has 4378 states and 6986 transitions. [2018-10-27 12:05:47,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 12:05:47,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6986 transitions. [2018-10-27 12:05:47,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-27 12:05:47,736 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:05:47,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:05:47,739 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:05:47,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:05:47,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1648723851, now seen corresponding path program 1 times [2018-10-27 12:05:47,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:05:47,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:47,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:05:47,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:47,741 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:05:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:05:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:05:47,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:05:47,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 12:05:47,980 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:05:47,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:05:47,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:05:47,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:05:47,982 INFO L87 Difference]: Start difference. First operand 4378 states and 6986 transitions. Second operand 6 states. [2018-10-27 12:05:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:05:53,478 INFO L93 Difference]: Finished difference Result 11002 states and 17598 transitions. [2018-10-27 12:05:53,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 12:05:53,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-27 12:05:53,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:05:53,519 INFO L225 Difference]: With dead ends: 11002 [2018-10-27 12:05:53,519 INFO L226 Difference]: Without dead ends: 6630 [2018-10-27 12:05:53,536 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 12:05:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2018-10-27 12:05:53,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 6590. [2018-10-27 12:05:53,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-10-27 12:05:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 9022 transitions. [2018-10-27 12:05:53,704 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 9022 transitions. Word has length 131 [2018-10-27 12:05:53,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:05:53,705 INFO L481 AbstractCegarLoop]: Abstraction has 6590 states and 9022 transitions. [2018-10-27 12:05:53,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 12:05:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 9022 transitions. [2018-10-27 12:05:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-27 12:05:53,709 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:05:53,710 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 12:05:53,710 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:05:53,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:05:53,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1769873797, now seen corresponding path program 1 times [2018-10-27 12:05:53,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:05:53,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:53,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:05:53,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:05:53,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:05:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:05:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-27 12:05:53,960 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:05:53,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 12:05:53,961 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:05:53,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 12:05:53,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 12:05:53,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 12:05:53,962 INFO L87 Difference]: Start difference. First operand 6590 states and 9022 transitions. Second operand 4 states. [2018-10-27 12:06:00,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:06:00,782 INFO L93 Difference]: Finished difference Result 26002 states and 36694 transitions. [2018-10-27 12:06:00,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 12:06:00,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2018-10-27 12:06:00,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:06:00,865 INFO L225 Difference]: With dead ends: 26002 [2018-10-27 12:06:00,866 INFO L226 Difference]: Without dead ends: 19418 [2018-10-27 12:06:00,910 INFO L605 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 [2018-10-27 12:06:00,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19418 states. [2018-10-27 12:06:01,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19418 to 19418. [2018-10-27 12:06:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19418 states. [2018-10-27 12:06:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19418 states to 19418 states and 25231 transitions. [2018-10-27 12:06:01,377 INFO L78 Accepts]: Start accepts. Automaton has 19418 states and 25231 transitions. Word has length 211 [2018-10-27 12:06:01,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:06:01,377 INFO L481 AbstractCegarLoop]: Abstraction has 19418 states and 25231 transitions. [2018-10-27 12:06:01,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 12:06:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 19418 states and 25231 transitions. [2018-10-27 12:06:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-10-27 12:06:01,391 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:06:01,392 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:06:01,392 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:06:01,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:06:01,392 INFO L82 PathProgramCache]: Analyzing trace with hash 828554779, now seen corresponding path program 1 times [2018-10-27 12:06:01,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:06:01,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:06:01,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:06:01,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:06:01,394 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:06:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:06:01,909 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 179 proven. 94 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-10-27 12:06:01,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:06:01,910 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:06:01,911 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 362 with the following transitions: [2018-10-27 12:06:01,914 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1795], [1797], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2272], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 12:06:01,963 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:06:01,964 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:06:03,166 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 12:06:19,679 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 12:06:19,681 INFO L272 AbstractInterpreter]: Visited 129 different actions 129 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 12:06:19,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:06:19,717 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 12:06:34,999 INFO L227 lantSequenceWeakener]: Weakened 349 states. On average, predicates are now at 77.53% of their original sizes. [2018-10-27 12:06:34,999 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 12:06:35,108 INFO L415 sIntCurrentIteration]: We unified 360 AI predicates to 360 [2018-10-27 12:06:35,109 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 12:06:35,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:06:35,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 12:06:35,110 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:06:35,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:06:35,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:06:35,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:06:35,112 INFO L87 Difference]: Start difference. First operand 19418 states and 25231 transitions. Second operand 6 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown