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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:37:49,150 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:37:49,152 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:37:49,165 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:37:49,165 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:37:49,167 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:37:49,168 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:37:49,170 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:37:49,171 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:37:49,172 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:37:49,173 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:37:49,174 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:37:49,175 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:37:49,176 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:37:49,177 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:37:49,178 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:37:49,179 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:37:49,180 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:37:49,183 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:37:49,184 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:37:49,186 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:37:49,187 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:37:49,190 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:37:49,190 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:37:49,190 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:37:49,191 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:37:49,193 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:37:49,193 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:37:49,194 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:37:49,196 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:37:49,196 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:37:49,197 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:37:49,197 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:37:49,197 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:37:49,198 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:37:49,199 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:37:49,199 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:37:49,215 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:37:49,216 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:37:49,216 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:37:49,217 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:37:49,217 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:37:49,217 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:37:49,217 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:37:49,217 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:37:49,218 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:37:49,218 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:37:49,218 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:37:49,218 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:37:49,219 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:37:49,219 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:37:49,219 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:37:49,219 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:37:49,220 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:37:49,220 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:37:49,220 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:37:49,220 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:37:49,220 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:37:49,221 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:37:49,221 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:37:49,221 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:37:49,221 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:37:49,221 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:37:49,222 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:37:49,222 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:37:49,222 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:37:49,222 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:37:49,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:37:49,223 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:37:49,223 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:37:49,223 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:37:49,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:37:49,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:37:49,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:37:49,286 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:37:49,287 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:37:49,288 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label30_false-unreach-call.c [2018-10-24 18:37:49,350 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d2fbac014/9f6aba3e78384ed69439a54742d6f9bc/FLAG7d128a726 [2018-10-24 18:37:50,031 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:37:50,032 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label30_false-unreach-call.c [2018-10-24 18:37:50,064 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d2fbac014/9f6aba3e78384ed69439a54742d6f9bc/FLAG7d128a726 [2018-10-24 18:37:50,083 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d2fbac014/9f6aba3e78384ed69439a54742d6f9bc [2018-10-24 18:37:50,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:37:50,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:37:50,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:37:50,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:37:50,103 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:37:50,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:37:50" (1/1) ... [2018-10-24 18:37:50,108 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 24.10 06:37:50, skipping insertion in model container [2018-10-24 18:37:50,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:37:50" (1/1) ... [2018-10-24 18:37:50,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:37:50,233 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:37:51,083 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:37:51,089 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:37:51,421 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:37:51,445 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:37:51,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51 WrapperNode [2018-10-24 18:37:51,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:37:51,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:37:51,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:37:51,448 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:37:51,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:51,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:51,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:37:51,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:37:51,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:37:51,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:37:51,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:51,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:51,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:51,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:52,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:52,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:52,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (1/1) ... [2018-10-24 18:37:52,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:37:52,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:37:52,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:37:52,182 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:37:52,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (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 [2018-10-24 18:37:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:37:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:37:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:37:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:37:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:37:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:37:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:37:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:37:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:37:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:37:58,577 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:37:58,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:58 BoogieIcfgContainer [2018-10-24 18:37:58,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:37:58,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:37:58,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:37:58,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:37:58,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:37:50" (1/3) ... [2018-10-24 18:37:58,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2391b2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:58, skipping insertion in model container [2018-10-24 18:37:58,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:51" (2/3) ... [2018-10-24 18:37:58,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2391b2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:58, skipping insertion in model container [2018-10-24 18:37:58,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:58" (3/3) ... [2018-10-24 18:37:58,590 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label30_false-unreach-call.c [2018-10-24 18:37:58,600 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:37:58,611 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:37:58,629 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:37:58,673 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:37:58,673 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:37:58,673 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:37:58,673 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:37:58,674 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:37:58,674 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:37:58,674 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:37:58,674 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:37:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 18:37:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-24 18:37:58,714 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:58,715 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] [2018-10-24 18:37:58,717 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:58,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:58,724 INFO L82 PathProgramCache]: Analyzing trace with hash 8064529, now seen corresponding path program 1 times [2018-10-24 18:37:58,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:58,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:58,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:58,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:58,780 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:59,158 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 18:37:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:59,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:59,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:37:59,169 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:59,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:37:59,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:37:59,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:59,196 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 18:38:10,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:38:10,334 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 18:38:10,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:38:10,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-10-24 18:38:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:38:10,368 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 18:38:10,368 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 18:38:10,381 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 [2018-10-24 18:38:10,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 18:38:10,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-10-24 18:38:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-10-24 18:38:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-10-24 18:38:10,522 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 21 [2018-10-24 18:38:10,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:38:10,523 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-10-24 18:38:10,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:38:10,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-10-24 18:38:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-24 18:38:10,529 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:38:10,529 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:38:10,530 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:38:10,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:10,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1407783292, now seen corresponding path program 1 times [2018-10-24 18:38:10,531 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:38:10,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:10,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:38:10,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:10,532 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:38:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:38:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:38:10,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:38:10,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:38:10,877 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:10,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:38:10,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:38:10,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:38:10,880 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-10-24 18:38:19,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:38:19,825 INFO L93 Difference]: Finished difference Result 3240 states and 5580 transitions. [2018-10-24 18:38:19,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:38:19,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2018-10-24 18:38:19,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:38:19,849 INFO L225 Difference]: With dead ends: 3240 [2018-10-24 18:38:19,850 INFO L226 Difference]: Without dead ends: 2155 [2018-10-24 18:38:19,857 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:38:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2018-10-24 18:38:19,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2114. [2018-10-24 18:38:19,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-10-24 18:38:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-10-24 18:38:19,978 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 94 [2018-10-24 18:38:19,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:38:19,979 INFO L481 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-10-24 18:38:19,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:38:19,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-10-24 18:38:19,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 18:38:19,987 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:38:19,987 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:38:19,987 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:38:19,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:19,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1696487028, now seen corresponding path program 1 times [2018-10-24 18:38:19,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:38:19,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:19,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:38:19,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:19,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:38:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:38:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:38:20,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:38:20,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:38:20,256 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:20,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:38:20,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:38:20,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:38:20,257 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 4 states. [2018-10-24 18:38:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:38:26,494 INFO L93 Difference]: Finished difference Result 7958 states and 12498 transitions. [2018-10-24 18:38:26,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:38:26,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2018-10-24 18:38:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:38:26,543 INFO L225 Difference]: With dead ends: 7958 [2018-10-24 18:38:26,543 INFO L226 Difference]: Without dead ends: 5850 [2018-10-24 18:38:26,569 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 [2018-10-24 18:38:26,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2018-10-24 18:38:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5847. [2018-10-24 18:38:26,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5847 states. [2018-10-24 18:38:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8223 transitions. [2018-10-24 18:38:26,749 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8223 transitions. Word has length 102 [2018-10-24 18:38:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:38:26,750 INFO L481 AbstractCegarLoop]: Abstraction has 5847 states and 8223 transitions. [2018-10-24 18:38:26,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:38:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8223 transitions. [2018-10-24 18:38:26,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-24 18:38:26,755 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:38:26,755 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:38:26,755 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:38:26,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:26,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1098741362, now seen corresponding path program 1 times [2018-10-24 18:38:26,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:38:26,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:26,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:38:26,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:26,757 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:38:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:38:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:38:27,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:38:27,101 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:38:27,102 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-10-24 18:38:27,104 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:38:27,182 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:38:27,182 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:38:29,712 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:38:29,714 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:38:29,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:29,754 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:38:30,982 INFO L232 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 77.48% of their original sizes. [2018-10-24 18:38:30,982 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:38:31,540 INFO L413 sIntCurrentIteration]: We have 132 unified AI predicates [2018-10-24 18:38:31,541 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:38:31,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:38:31,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-10-24 18:38:31,542 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:31,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 18:38:31,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 18:38:31,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:38:31,543 INFO L87 Difference]: Start difference. First operand 5847 states and 8223 transitions. Second operand 8 states. [2018-10-24 18:38:35,461 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:39:57,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:39:57,341 INFO L93 Difference]: Finished difference Result 11998 states and 16819 transitions. [2018-10-24 18:39:57,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:39:57,342 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2018-10-24 18:39:57,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:39:57,372 INFO L225 Difference]: With dead ends: 11998 [2018-10-24 18:39:57,372 INFO L226 Difference]: Without dead ends: 6157 [2018-10-24 18:39:57,402 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:39:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6157 states. [2018-10-24 18:39:57,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6157 to 6155. [2018-10-24 18:39:57,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6155 states. [2018-10-24 18:39:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6155 states to 6155 states and 8539 transitions. [2018-10-24 18:39:57,572 INFO L78 Accepts]: Start accepts. Automaton has 6155 states and 8539 transitions. Word has length 133 [2018-10-24 18:39:57,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:39:57,573 INFO L481 AbstractCegarLoop]: Abstraction has 6155 states and 8539 transitions. [2018-10-24 18:39:57,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 18:39:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6155 states and 8539 transitions. [2018-10-24 18:39:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-24 18:39:57,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:39:57,577 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:39:57,578 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:39:57,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:39:57,578 INFO L82 PathProgramCache]: Analyzing trace with hash 2137760452, now seen corresponding path program 1 times [2018-10-24 18:39:57,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:39:57,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:39:57,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:39:57,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:39:57,580 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:39:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:39:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:39:58,348 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:39:58,348 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:39:58,348 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-10-24 18:39:58,349 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:39:58,357 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:39:58,357 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:39:59,598 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:40:07,398 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:40:07,398 INFO L272 AbstractInterpreter]: Visited 120 different actions 347 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:40:07,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:40:07,406 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:40:10,020 INFO L232 lantSequenceWeakener]: Weakened 28 states. On average, predicates are now at 79.51% of their original sizes. [2018-10-24 18:40:10,021 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 18:41:50,832 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:41:50,837 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:41:50,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:41:50 BoogieIcfgContainer [2018-10-24 18:41:50,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:41:50,839 INFO L168 Benchmark]: Toolchain (without parser) took 240742.82 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-24 18:41:50,840 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 18:41:50,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1348.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:50,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 479.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -873.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:50,843 INFO L168 Benchmark]: Boogie Preprocessor took 254.61 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:50,844 INFO L168 Benchmark]: RCFGBuilder took 6397.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 294.6 MB). Peak memory consumption was 294.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:50,845 INFO L168 Benchmark]: TraceAbstraction took 232256.63 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 3.4 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 18:41:50,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1348.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 479.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -873.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 254.61 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6397.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 294.6 MB). Peak memory consumption was 294.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232256.63 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 3.4 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 49). Cancelled while BasicCegarLoop was analyzing trace of length 230 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 232.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 112.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1267 SDtfs, 3628 SDslu, 1022 SDs, 0 SdLazy, 7094 SolverSat, 1716 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 79.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6155occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9943941223832526 AbsIntWeakeningRatio, 0.12777777777777777 AbsIntAvgWeakeningVarsNumRemoved, 394.96666666666664 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 69 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 108131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 28/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown