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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:43:03,149 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:43:03,151 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:43:03,169 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:43:03,169 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:43:03,171 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:43:03,172 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:43:03,175 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:43:03,179 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:43:03,180 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:43:03,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:43:03,188 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:43:03,189 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:43:03,193 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:43:03,195 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:43:03,196 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:43:03,198 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:43:03,201 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:43:03,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:43:03,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:43:03,209 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:43:03,211 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:43:03,214 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 01:43:03,226 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:43:03,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:43:03,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:43:03,256 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:43:03,257 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:43:03,257 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:43:03,257 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:43:03,257 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:43:03,257 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:43:03,258 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:43:03,258 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:43:03,258 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:43:03,258 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:43:03,258 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:43:03,259 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:43:03,260 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:43:03,260 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:43:03,260 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:43:03,260 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:43:03,261 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:43:03,262 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:43:03,262 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:43:03,262 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:43:03,262 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:43:03,262 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:43:03,263 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:43:03,263 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:43:03,263 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:43:03,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:43:03,264 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:43:03,264 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:43:03,264 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:43:03,264 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:43:03,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:43:03,265 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:43:03,265 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:43:03,265 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:43:03,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:43:03,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:43:03,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:43:03,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:43:03,342 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:43:03,343 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-10-25 01:43:03,407 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98ef0efe/93b2a750b2054b0ab11d012891d6deff/FLAG1c4212351 [2018-10-25 01:43:04,234 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:43:04,235 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-10-25 01:43:04,268 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98ef0efe/93b2a750b2054b0ab11d012891d6deff/FLAG1c4212351 [2018-10-25 01:43:04,284 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98ef0efe/93b2a750b2054b0ab11d012891d6deff [2018-10-25 01:43:04,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:43:04,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:43:04,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:43:04,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:43:04,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:43:04,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:43:04" (1/1) ... [2018-10-25 01:43:04,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b38e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:04, skipping insertion in model container [2018-10-25 01:43:04,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:43:04" (1/1) ... [2018-10-25 01:43:04,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:43:04,495 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:43:06,004 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:43:06,009 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:43:06,738 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:43:06,779 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:43:06,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06 WrapperNode [2018-10-25 01:43:06,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:43:06,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:43:06,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:43:06,781 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:43:06,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:06,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:43:07,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:43:07,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:43:07,404 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:43:07,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (1/1) ... [2018-10-25 01:43:07,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:43:07,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:43:07,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:43:07,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:43:07,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (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 [2018-10-25 01:43:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:43:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:43:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 01:43:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 01:43:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 01:43:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 01:43:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 01:43:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 01:43:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:43:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:43:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:43:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:43:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:43:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:43:18,151 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:43:18,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:43:18 BoogieIcfgContainer [2018-10-25 01:43:18,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:43:18,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:43:18,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:43:18,156 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:43:18,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:43:04" (1/3) ... [2018-10-25 01:43:18,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d1ecb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:43:18, skipping insertion in model container [2018-10-25 01:43:18,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:43:06" (2/3) ... [2018-10-25 01:43:18,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d1ecb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:43:18, skipping insertion in model container [2018-10-25 01:43:18,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:43:18" (3/3) ... [2018-10-25 01:43:18,160 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label37_true-unreach-call.c [2018-10-25 01:43:18,171 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:43:18,181 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:43:18,199 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:43:18,247 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:43:18,247 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:43:18,247 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:43:18,247 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:43:18,248 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:43:18,248 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:43:18,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:43:18,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:43:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-25 01:43:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-25 01:43:18,299 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:43:18,301 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:43:18,303 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:43:18,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:43:18,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1389126997, now seen corresponding path program 1 times [2018-10-25 01:43:18,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:43:18,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:18,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:43:18,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:18,361 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:43:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:43:18,841 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:43:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:43:18,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:43:18,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:43:18,962 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:43:18,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:43:18,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:43:18,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:43:18,989 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-25 01:43:29,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:43:29,060 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-10-25 01:43:29,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:43:29,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-10-25 01:43:29,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:43:29,098 INFO L225 Difference]: With dead ends: 3087 [2018-10-25 01:43:29,098 INFO L226 Difference]: Without dead ends: 1965 [2018-10-25 01:43:29,112 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:43:29,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-10-25 01:43:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-10-25 01:43:29,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-10-25 01:43:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-10-25 01:43:29,277 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 61 [2018-10-25 01:43:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:43:29,278 INFO L481 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-10-25 01:43:29,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:43:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-10-25 01:43:29,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-25 01:43:29,287 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:43:29,287 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:43:29,288 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:43:29,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:43:29,288 INFO L82 PathProgramCache]: Analyzing trace with hash -159322310, now seen corresponding path program 1 times [2018-10-25 01:43:29,288 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:43:29,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:29,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:43:29,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:29,290 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:43:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:43:29,694 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:43:29,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:43:29,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:43:29,695 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:43:29,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:43:29,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:43:29,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:43:29,698 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-10-25 01:43:44,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:43:44,217 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-10-25 01:43:44,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:43:44,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-25 01:43:44,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:43:44,249 INFO L225 Difference]: With dead ends: 5634 [2018-10-25 01:43:44,249 INFO L226 Difference]: Without dead ends: 3681 [2018-10-25 01:43:44,257 INFO L605 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 [2018-10-25 01:43:44,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-10-25 01:43:44,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-10-25 01:43:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-10-25 01:43:44,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-10-25 01:43:44,370 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 138 [2018-10-25 01:43:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:43:44,371 INFO L481 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-10-25 01:43:44,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:43:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-10-25 01:43:44,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-25 01:43:44,377 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:43:44,378 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:43:44,378 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:43:44,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:43:44,379 INFO L82 PathProgramCache]: Analyzing trace with hash -587412254, now seen corresponding path program 1 times [2018-10-25 01:43:44,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:43:44,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:44,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:43:44,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:44,380 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:43:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:43:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:43:44,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:43:44,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:43:44,683 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:43:44,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:43:44,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:43:44,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:43:44,685 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-10-25 01:43:58,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:43:58,162 INFO L93 Difference]: Finished difference Result 12391 states and 20613 transitions. [2018-10-25 01:43:58,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 01:43:58,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-10-25 01:43:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:43:58,213 INFO L225 Difference]: With dead ends: 12391 [2018-10-25 01:43:58,213 INFO L226 Difference]: Without dead ends: 8747 [2018-10-25 01:43:58,235 INFO L605 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 [2018-10-25 01:43:58,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2018-10-25 01:43:58,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 8687. [2018-10-25 01:43:58,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8687 states. [2018-10-25 01:43:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8687 states to 8687 states and 12872 transitions. [2018-10-25 01:43:58,455 INFO L78 Accepts]: Start accepts. Automaton has 8687 states and 12872 transitions. Word has length 157 [2018-10-25 01:43:58,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:43:58,456 INFO L481 AbstractCegarLoop]: Abstraction has 8687 states and 12872 transitions. [2018-10-25 01:43:58,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:43:58,456 INFO L276 IsEmpty]: Start isEmpty. Operand 8687 states and 12872 transitions. [2018-10-25 01:43:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-25 01:43:58,461 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:43:58,462 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:43:58,462 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:43:58,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:43:58,462 INFO L82 PathProgramCache]: Analyzing trace with hash 955353466, now seen corresponding path program 1 times [2018-10-25 01:43:58,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:43:58,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:58,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:43:58,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:58,465 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:43:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:43:58,754 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:43:58,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:43:58,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:43:58,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:43:58,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:43:58,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:43:58,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:43:58,756 INFO L87 Difference]: Start difference. First operand 8687 states and 12872 transitions. Second operand 6 states. [2018-10-25 01:44:12,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:44:12,264 INFO L93 Difference]: Finished difference Result 22923 states and 34949 transitions. [2018-10-25 01:44:12,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:44:12,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-10-25 01:44:12,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:44:12,353 INFO L225 Difference]: With dead ends: 22923 [2018-10-25 01:44:12,353 INFO L226 Difference]: Without dead ends: 14242 [2018-10-25 01:44:12,399 INFO L605 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 [2018-10-25 01:44:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14242 states. [2018-10-25 01:44:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14242 to 14068. [2018-10-25 01:44:12,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14068 states. [2018-10-25 01:44:12,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14068 states to 14068 states and 19976 transitions. [2018-10-25 01:44:12,771 INFO L78 Accepts]: Start accepts. Automaton has 14068 states and 19976 transitions. Word has length 169 [2018-10-25 01:44:12,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:44:12,772 INFO L481 AbstractCegarLoop]: Abstraction has 14068 states and 19976 transitions. [2018-10-25 01:44:12,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:44:12,772 INFO L276 IsEmpty]: Start isEmpty. Operand 14068 states and 19976 transitions. [2018-10-25 01:44:12,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-25 01:44:12,782 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:44:12,782 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:44:12,783 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:44:12,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:44:12,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1006516317, now seen corresponding path program 1 times [2018-10-25 01:44:12,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:44:12,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:12,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:44:12,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:12,785 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:44:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:44:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:44:13,155 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:44:13,157 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:44:13,158 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-10-25 01:44:13,162 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3128], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3225], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-25 01:44:13,215 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:44:13,215 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:44:13,784 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:44:13,786 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 01:44:13,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:44:13,814 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:44:14,382 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 71.55% of their original sizes. [2018-10-25 01:44:14,382 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:44:14,584 INFO L413 sIntCurrentIteration]: We have 223 unified AI predicates [2018-10-25 01:44:14,584 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:44:14,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:44:14,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-25 01:44:14,585 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:44:14,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:44:14,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:44:14,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:44:14,587 INFO L87 Difference]: Start difference. First operand 14068 states and 19976 transitions. Second operand 6 states. [2018-10-25 01:44:19,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:44:19,994 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-25 01:44:19,999 INFO L168 Benchmark]: Toolchain (without parser) took 75701.29 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 281.6 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:20,001 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. [2018-10-25 01:44:20,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2479.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:20,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 622.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 813.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:20,003 INFO L168 Benchmark]: Boogie Preprocessor took 291.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:20,005 INFO L168 Benchmark]: RCFGBuilder took 10456.53 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 208.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -28.1 MB). Peak memory consumption was 687.9 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:20,006 INFO L168 Benchmark]: TraceAbstraction took 61845.86 ms. Allocated memory was 2.6 GB in the beginning and 3.1 GB in the end (delta: 539.0 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -449.8 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:20,013 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 2479.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 622.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 813.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 291.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10456.53 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 208.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -28.1 MB). Peak memory consumption was 687.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 61845.86 ms. Allocated memory was 2.6 GB in the beginning and 3.1 GB in the end (delta: 539.0 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -449.8 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...