java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:56:47,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:56:47,137 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:56:47,153 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:56:47,156 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:56:47,157 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:56:47,158 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:56:47,162 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:56:47,164 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:56:47,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:56:47,166 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:56:47,166 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:56:47,167 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:56:47,168 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:56:47,170 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:56:47,170 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:56:47,171 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:56:47,173 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:56:47,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:56:47,177 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:56:47,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:56:47,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:56:47,182 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 02:56:47,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 02:56:47,183 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 02:56:47,184 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 02:56:47,185 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 02:56:47,186 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 02:56:47,186 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 02:56:47,188 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 02:56:47,188 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 02:56:47,189 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 02:56:47,189 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 02:56:47,190 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 02:56:47,191 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 02:56:47,192 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 02:56:47,192 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 02:56:47,224 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:56:47,225 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:56:47,226 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:56:47,226 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:56:47,229 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:56:47,229 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:56:47,229 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:56:47,229 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:56:47,230 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:56:47,230 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:56:47,230 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:56:47,230 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:56:47,231 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:56:47,231 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:56:47,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:56:47,235 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:56:47,235 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:56:47,235 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:56:47,235 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:56:47,235 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:56:47,237 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:56:47,237 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:56:47,237 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:56:47,238 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:56:47,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:56:47,238 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:56:47,238 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:56:47,238 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:56:47,239 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:56:47,239 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:56:47,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:56:47,240 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:56:47,240 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:56:47,240 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:56:47,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:56:47,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:56:47,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:56:47,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:56:47,341 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:56:47,342 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c [2018-11-07 02:56:47,411 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527a30a54/e18189f8c00e41c7866c7375664f84b3/FLAGf319857ad [2018-11-07 02:56:48,056 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:56:48,057 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c [2018-11-07 02:56:48,072 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527a30a54/e18189f8c00e41c7866c7375664f84b3/FLAGf319857ad [2018-11-07 02:56:48,089 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527a30a54/e18189f8c00e41c7866c7375664f84b3 [2018-11-07 02:56:48,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:56:48,104 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:56:48,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:56:48,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:56:48,109 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:56:48,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:48" (1/1) ... [2018-11-07 02:56:48,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0c593d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:48, skipping insertion in model container [2018-11-07 02:56:48,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:48" (1/1) ... [2018-11-07 02:56:48,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:56:48,193 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:56:48,819 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:56:48,824 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:56:49,025 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:56:49,049 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:56:49,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49 WrapperNode [2018-11-07 02:56:49,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:56:49,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:56:49,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:56:49,051 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:56:49,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:56:49,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:56:49,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:56:49,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:56:49,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:56:49,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:56:49,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:56:49,400 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:56:49,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:56:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:56:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:56:49,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:56:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:56:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:56:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:56:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:56:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:56:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:56:53,813 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:56:53,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:56:53 BoogieIcfgContainer [2018-11-07 02:56:53,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:56:53,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:56:53,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:56:53,821 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:56:53,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:56:48" (1/3) ... [2018-11-07 02:56:53,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb3c12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:56:53, skipping insertion in model container [2018-11-07 02:56:53,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49" (2/3) ... [2018-11-07 02:56:53,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb3c12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:56:53, skipping insertion in model container [2018-11-07 02:56:53,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:56:53" (3/3) ... [2018-11-07 02:56:53,827 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label24_true-unreach-call.c [2018-11-07 02:56:53,841 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:56:53,851 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:56:53,867 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:56:53,922 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:56:53,923 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:56:53,923 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:56:53,923 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:56:53,923 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:56:53,924 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:56:53,924 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:56:53,924 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:56:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 02:56:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-07 02:56:53,975 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:56:53,977 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] [2018-11-07 02:56:53,980 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:56:53,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:56:53,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1684659980, now seen corresponding path program 1 times [2018-11-07 02:56:53,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:56:54,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:56:54,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:56:54,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:56:54,046 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:56:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:56:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:56:54,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:56:54,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 02:56:54,533 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:56:54,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 02:56:54,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 02:56:54,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:56:54,560 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 02:56:58,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:56:58,174 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-11-07 02:56:58,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 02:56:58,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-11-07 02:56:58,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:56:58,199 INFO L225 Difference]: With dead ends: 996 [2018-11-07 02:56:58,200 INFO L226 Difference]: Without dead ends: 697 [2018-11-07 02:56:58,209 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:56:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-11-07 02:56:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-11-07 02:56:58,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-11-07 02:56:58,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-11-07 02:56:58,321 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 58 [2018-11-07 02:56:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:56:58,322 INFO L480 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-11-07 02:56:58,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 02:56:58,322 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-11-07 02:56:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-07 02:56:58,330 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:56:58,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:56:58,331 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:56:58,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:56:58,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1326176867, now seen corresponding path program 1 times [2018-11-07 02:56:58,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:56:58,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:56:58,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:56:58,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:56:58,334 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:56:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:56:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:56:58,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:56:58,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 02:56:58,709 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:56:58,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 02:56:58,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 02:56:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 02:56:58,712 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-11-07 02:57:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:57:02,895 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-11-07 02:57:02,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:57:02,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-07 02:57:02,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:57:02,913 INFO L225 Difference]: With dead ends: 1725 [2018-11-07 02:57:02,913 INFO L226 Difference]: Without dead ends: 1250 [2018-11-07 02:57:02,919 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 02:57:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-11-07 02:57:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-11-07 02:57:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-11-07 02:57:03,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-11-07 02:57:03,018 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 131 [2018-11-07 02:57:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:57:03,018 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-11-07 02:57:03,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 02:57:03,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-11-07 02:57:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 02:57:03,024 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:57:03,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:57:03,030 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:57:03,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:03,031 INFO L82 PathProgramCache]: Analyzing trace with hash -704139656, now seen corresponding path program 1 times [2018-11-07 02:57:03,031 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:57:03,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:03,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:57:03,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:03,034 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:57:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:57:03,733 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-07 02:57:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:57:03,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:57:03,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-07 02:57:03,985 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:57:03,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 02:57:03,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 02:57:03,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 02:57:03,986 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 7 states. [2018-11-07 02:57:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:57:10,278 INFO L93 Difference]: Finished difference Result 3652 states and 5569 transitions. [2018-11-07 02:57:10,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 02:57:10,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2018-11-07 02:57:10,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:57:10,309 INFO L225 Difference]: With dead ends: 3652 [2018-11-07 02:57:10,309 INFO L226 Difference]: Without dead ends: 2427 [2018-11-07 02:57:10,321 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-07 02:57:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2018-11-07 02:57:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2147. [2018-11-07 02:57:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2147 states. [2018-11-07 02:57:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 2934 transitions. [2018-11-07 02:57:10,412 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 2934 transitions. Word has length 132 [2018-11-07 02:57:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:57:10,413 INFO L480 AbstractCegarLoop]: Abstraction has 2147 states and 2934 transitions. [2018-11-07 02:57:10,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 02:57:10,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 2934 transitions. [2018-11-07 02:57:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-11-07 02:57:10,416 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:57:10,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:57:10,417 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:57:10,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:10,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1415755325, now seen corresponding path program 1 times [2018-11-07 02:57:10,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:57:10,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:10,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:57:10,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:10,420 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:57:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:57:10,892 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 02:57:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 02:57:10,953 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:57:10,954 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:57:10,955 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2018-11-07 02:57:10,959 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:57:11,067 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:57:11,068 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:57:15,232 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:57:30,652 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:57:30,654 INFO L272 AbstractInterpreter]: Visited 124 different actions 360 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 02:57:30,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:30,699 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:57:34,444 INFO L227 lantSequenceWeakener]: Weakened 166 states. On average, predicates are now at 74.36% of their original sizes. [2018-11-07 02:57:34,445 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:57:38,408 INFO L415 sIntCurrentIteration]: We unified 174 AI predicates to 174 [2018-11-07 02:57:38,408 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:57:38,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:57:38,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-07 02:57:38,409 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:57:38,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 02:57:38,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 02:57:38,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-11-07 02:57:38,411 INFO L87 Difference]: Start difference. First operand 2147 states and 2934 transitions. Second operand 15 states. [2018-11-07 02:59:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:59:45,999 INFO L93 Difference]: Finished difference Result 4676 states and 6444 transitions. [2018-11-07 02:59:45,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 02:59:45,999 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 175 [2018-11-07 02:59:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:59:46,015 INFO L225 Difference]: With dead ends: 4676 [2018-11-07 02:59:46,015 INFO L226 Difference]: Without dead ends: 2535 [2018-11-07 02:59:46,025 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2018-11-07 02:59:46,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2018-11-07 02:59:46,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 2528. [2018-11-07 02:59:46,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2528 states. [2018-11-07 02:59:46,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3341 transitions. [2018-11-07 02:59:46,177 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3341 transitions. Word has length 175 [2018-11-07 02:59:46,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:59:46,178 INFO L480 AbstractCegarLoop]: Abstraction has 2528 states and 3341 transitions. [2018-11-07 02:59:46,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 02:59:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3341 transitions. [2018-11-07 02:59:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-11-07 02:59:46,183 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:59:46,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:59:46,184 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:59:46,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:59:46,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1882969289, now seen corresponding path program 1 times [2018-11-07 02:59:46,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:59:46,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:59:46,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:59:46,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:59:46,191 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:59:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:59:46,630 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 02:59:46,630 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:59:46,631 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:59:46,631 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-11-07 02:59:46,632 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:59:46,645 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:59:46,646 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:59:52,989 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:00:10,547 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:00:10,548 INFO L272 AbstractInterpreter]: Visited 134 different actions 390 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 03:00:10,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:00:10,555 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:00:13,428 INFO L227 lantSequenceWeakener]: Weakened 49 states. On average, predicates are now at 77.22% of their original sizes. [2018-11-07 03:00:13,428 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 03:00:39,996 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:00:40,001 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:00:40,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:00:40 BoogieIcfgContainer [2018-11-07 03:00:40,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:00:40,003 INFO L168 Benchmark]: Toolchain (without parser) took 231900.51 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,004 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. [2018-11-07 03:00:40,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 945.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 204.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -841.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,007 INFO L168 Benchmark]: Boogie Preprocessor took 144.12 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:00:40,007 INFO L168 Benchmark]: RCFGBuilder took 4415.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 177.8 MB). Peak memory consumption was 177.8 MB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,008 INFO L168 Benchmark]: TraceAbstraction took 226185.89 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -811.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,013 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 945.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 204.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -841.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.12 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4415.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 177.8 MB). Peak memory consumption was 177.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226185.89 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -811.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was analyzing trace of length 186 with TraceHistMax 2,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 226.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 141.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 795 SDtfs, 3784 SDslu, 1059 SDs, 0 SdLazy, 7211 SolverSat, 1361 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 216 GetRequests, 170 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2528occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 43.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.99518193372942 AbsIntWeakeningRatio, 0.12290502793296089 AbsIntAvgWeakeningVarsNumRemoved, 161.08379888268158 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 522 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 363560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 106/153 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown