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/Problem16_label54_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:49:22,282 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:49:22,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:49:22,303 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:49:22,304 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:49:22,305 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:49:22,307 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:49:22,309 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:49:22,312 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:49:22,314 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:49:22,315 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:49:22,318 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:49:22,319 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:49:22,320 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:49:22,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:49:22,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:49:22,327 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:49:22,328 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:49:22,337 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:49:22,344 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:49:22,345 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:49:22,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:49:22,351 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:49:22,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:49:22,352 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:49:22,352 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:49:22,354 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:49:22,355 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:49:22,356 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:49:22,360 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:49:22,360 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:49:22,361 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:49:22,361 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:49:22,361 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:49:22,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:49:22,365 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:49:22,365 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 18:49:22,391 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:49:22,391 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:49:22,392 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:49:22,392 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:49:22,392 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:49:22,392 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:49:22,393 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:49:22,393 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:49:22,393 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:49:22,393 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:49:22,393 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:49:22,394 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:49:22,394 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:49:22,395 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:49:22,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:49:22,395 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:49:22,395 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:49:22,395 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:49:22,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:49:22,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:49:22,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:49:22,396 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:49:22,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:49:22,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:49:22,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:49:22,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:49:22,397 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:49:22,398 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:49:22,398 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:49:22,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:49:22,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:49:22,398 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:49:22,399 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:49:22,399 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:49:22,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:49:22,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:49:22,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:49:22,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:49:22,471 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:49:22,472 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label54_false-unreach-call.c [2018-10-24 18:49:22,551 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a34638c5/45f125120c2f4124a22ed76b7afb64ef/FLAG4d3e2b639 [2018-10-24 18:49:23,222 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:49:23,226 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label54_false-unreach-call.c [2018-10-24 18:49:23,246 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a34638c5/45f125120c2f4124a22ed76b7afb64ef/FLAG4d3e2b639 [2018-10-24 18:49:23,266 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a34638c5/45f125120c2f4124a22ed76b7afb64ef [2018-10-24 18:49:23,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:49:23,283 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:49:23,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:49:23,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:49:23,288 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:49:23,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:49:23" (1/1) ... [2018-10-24 18:49:23,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b792d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:23, skipping insertion in model container [2018-10-24 18:49:23,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:49:23" (1/1) ... [2018-10-24 18:49:23,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:49:23,400 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:49:24,161 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:49:24,166 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:49:24,436 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:49:24,459 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:49:24,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24 WrapperNode [2018-10-24 18:49:24,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:49:24,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:49:24,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:49:24,461 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:49:24,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:24,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:24,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:49:24,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:49:24,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:49:24,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:49:24,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:24,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:24,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:24,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:24,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:24,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:25,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (1/1) ... [2018-10-24 18:49:25,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:49:25,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:49:25,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:49:25,040 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:49:25,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (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 18:49:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:49:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:49:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:49:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:49:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:49:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:49:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:49:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:49:25,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:49:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:49:31,115 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:49:31,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:49:31 BoogieIcfgContainer [2018-10-24 18:49:31,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:49:31,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:49:31,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:49:31,125 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:49:31,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:49:23" (1/3) ... [2018-10-24 18:49:31,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f9bd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:49:31, skipping insertion in model container [2018-10-24 18:49:31,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:24" (2/3) ... [2018-10-24 18:49:31,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f9bd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:49:31, skipping insertion in model container [2018-10-24 18:49:31,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:49:31" (3/3) ... [2018-10-24 18:49:31,130 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label54_false-unreach-call.c [2018-10-24 18:49:31,139 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:49:31,149 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:49:31,168 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:49:31,225 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:49:31,225 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:49:31,226 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:49:31,226 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:49:31,226 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:49:31,226 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:49:31,226 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:49:31,226 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:49:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 18:49:31,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-24 18:49:31,271 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:49:31,272 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] [2018-10-24 18:49:31,274 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:49:31,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:31,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1160914644, now seen corresponding path program 1 times [2018-10-24 18:49:31,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:49:31,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:31,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:49:31,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:31,338 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:49:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:49:31,719 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:49:31,830 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 18:49:31,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:49:31,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:49:31,834 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:31,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:49:31,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:49:31,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:49:31,864 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-24 18:49:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:49:38,150 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-24 18:49:38,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:49:38,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-10-24 18:49:38,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:49:38,179 INFO L225 Difference]: With dead ends: 1156 [2018-10-24 18:49:38,180 INFO L226 Difference]: Without dead ends: 744 [2018-10-24 18:49:38,190 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:49:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-24 18:49:38,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-24 18:49:38,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 18:49:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-10-24 18:49:38,302 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 32 [2018-10-24 18:49:38,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:49:38,303 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-10-24 18:49:38,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:49:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-10-24 18:49:38,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-24 18:49:38,311 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:49:38,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:38,312 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:49:38,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:38,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1315464537, now seen corresponding path program 1 times [2018-10-24 18:49:38,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:49:38,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:38,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:49:38,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:38,315 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:49:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:49:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:49:38,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:49:38,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:49:38,676 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:38,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:49:38,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:49:38,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:49:38,679 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-10-24 18:49:46,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:49:46,654 INFO L93 Difference]: Finished difference Result 2184 states and 3999 transitions. [2018-10-24 18:49:46,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:49:46,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-24 18:49:46,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:49:46,672 INFO L225 Difference]: With dead ends: 2184 [2018-10-24 18:49:46,672 INFO L226 Difference]: Without dead ends: 1446 [2018-10-24 18:49:46,678 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:49:46,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-10-24 18:49:46,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-10-24 18:49:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-10-24 18:49:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2268 transitions. [2018-10-24 18:49:46,756 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2268 transitions. Word has length 125 [2018-10-24 18:49:46,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:49:46,756 INFO L481 AbstractCegarLoop]: Abstraction has 1425 states and 2268 transitions. [2018-10-24 18:49:46,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:49:46,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2268 transitions. [2018-10-24 18:49:46,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-24 18:49:46,770 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:49:46,770 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:49:46,770 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:49:46,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:46,773 INFO L82 PathProgramCache]: Analyzing trace with hash 928114384, now seen corresponding path program 1 times [2018-10-24 18:49:46,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:49:46,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:46,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:49:46,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:46,775 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:49:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:49:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 50 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:49:47,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:49:47,046 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:49:47,047 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-10-24 18:49:47,049 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:49:47,132 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:49:47,134 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:49:49,524 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:49:49,527 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 18:49:49,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:49,534 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:49:51,516 INFO L232 lantSequenceWeakener]: Weakened 228 states. On average, predicates are now at 77.64% of their original sizes. [2018-10-24 18:49:51,516 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:49:51,960 INFO L413 sIntCurrentIteration]: We have 235 unified AI predicates [2018-10-24 18:49:51,960 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:49:51,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:49:51,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 18:49:51,966 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:51,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:49:51,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:49:51,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:49:51,968 INFO L87 Difference]: Start difference. First operand 1425 states and 2268 transitions. Second operand 7 states. [2018-10-24 18:49:54,137 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:50:20,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:50:20,544 INFO L93 Difference]: Finished difference Result 3184 states and 5090 transitions. [2018-10-24 18:50:20,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:50:20,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2018-10-24 18:50:20,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:50:20,554 INFO L225 Difference]: With dead ends: 3184 [2018-10-24 18:50:20,555 INFO L226 Difference]: Without dead ends: 1765 [2018-10-24 18:50:20,560 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:50:20,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2018-10-24 18:50:20,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1763. [2018-10-24 18:50:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2018-10-24 18:50:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2613 transitions. [2018-10-24 18:50:20,607 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2613 transitions. Word has length 236 [2018-10-24 18:50:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:50:20,608 INFO L481 AbstractCegarLoop]: Abstraction has 1763 states and 2613 transitions. [2018-10-24 18:50:20,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:50:20,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2613 transitions. [2018-10-24 18:50:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-10-24 18:50:20,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:50:20,615 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 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 18:50:20,616 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:50:20,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:50:20,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1607710254, now seen corresponding path program 1 times [2018-10-24 18:50:20,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:50:20,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:50:20,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:50:20,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:50:20,618 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:50:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:50:21,008 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:50:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 81 proven. 197 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 18:50:21,437 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:50:21,437 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:50:21,438 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 329 with the following transitions: [2018-10-24 18:50:21,438 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:50:21,444 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:50:21,444 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:50:22,785 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:50:30,750 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:50:30,750 INFO L272 AbstractInterpreter]: Visited 120 different actions 351 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:50:30,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:50:30,759 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:50:34,303 INFO L232 lantSequenceWeakener]: Weakened 85 states. On average, predicates are now at 77.75% of their original sizes. [2018-10-24 18:50:34,304 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:51:39,284 INFO L413 sIntCurrentIteration]: We have 327 unified AI predicates [2018-10-24 18:51:39,284 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:51:39,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:51:39,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-10-24 18:51:39,285 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:51:39,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 18:51:39,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 18:51:39,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-10-24 18:51:39,287 INFO L87 Difference]: Start difference. First operand 1763 states and 2613 transitions. Second operand 16 states. Received shutdown request... [2018-10-24 18:53:26,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 18:53:26,649 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:53:26,655 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:53:26,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:53:26 BoogieIcfgContainer [2018-10-24 18:53:26,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:53:26,656 INFO L168 Benchmark]: Toolchain (without parser) took 243374.45 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 480.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:26,657 INFO L168 Benchmark]: CDTParser took 0.20 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 18:53:26,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1176.75 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:26,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 388.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:26,660 INFO L168 Benchmark]: Boogie Preprocessor took 188.96 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:26,661 INFO L168 Benchmark]: RCFGBuilder took 6077.55 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: 251.1 MB). Peak memory consumption was 251.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:26,661 INFO L168 Benchmark]: TraceAbstraction took 235535.17 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 3.6 GB in the end (delta: -1.7 GB). Peak memory consumption was 238.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:26,667 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1176.75 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 388.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 188.96 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6077.55 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: 251.1 MB). Peak memory consumption was 251.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235535.17 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 3.6 GB in the end (delta: -1.7 GB). Peak memory consumption was 238.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 82). Cancelled while BasicCegarLoop was constructing difference of abstraction (1763states) and FLOYD_HOARE automaton (currently 18 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (613 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 235.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 150.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 674 SDtfs, 4372 SDslu, 319 SDs, 0 SdLazy, 5290 SolverSat, 1825 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 60.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 585 GetRequests, 471 SyntacticMatches, 79 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 66.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1763occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9956515292175975 AbsIntWeakeningRatio, 0.10320284697508897 AbsIntAvgWeakeningVarsNumRemoved, 561.0711743772242 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 721 NumberOfCodeBlocks, 721 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 717 ConstructedInterpolants, 0 QuantifiedInterpolants, 560853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 235/520 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown