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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label38_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 17:50:28,304 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 17:50:28,306 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 17:50:28,324 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 17:50:28,324 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 17:50:28,325 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 17:50:28,326 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 17:50:28,329 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 17:50:28,332 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 17:50:28,333 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 17:50:28,335 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 17:50:28,336 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 17:50:28,336 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 17:50:28,338 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 17:50:28,345 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 17:50:28,346 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 17:50:28,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 17:50:28,351 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 17:50:28,357 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 17:50:28,359 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 17:50:28,361 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 17:50:28,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 17:50:28,365 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 17:50:28,365 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 17:50:28,365 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 17:50:28,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 17:50:28,369 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 17:50:28,370 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 17:50:28,372 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 17:50:28,373 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 17:50:28,373 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 17:50:28,375 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 17:50:28,375 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 17:50:28,376 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 17:50:28,377 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 17:50:28,378 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 17:50:28,379 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 17:50:28,406 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 17:50:28,406 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 17:50:28,407 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 17:50:28,407 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 17:50:28,407 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 17:50:28,408 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 17:50:28,408 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 17:50:28,408 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 17:50:28,408 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 17:50:28,408 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 17:50:28,409 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 17:50:28,409 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 17:50:28,410 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 17:50:28,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 17:50:28,410 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 17:50:28,411 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 17:50:28,411 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 17:50:28,411 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 17:50:28,411 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 17:50:28,411 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 17:50:28,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 17:50:28,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 17:50:28,414 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 17:50:28,414 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 17:50:28,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 17:50:28,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 17:50:28,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 17:50:28,415 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 17:50:28,415 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 17:50:28,415 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 17:50:28,415 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 17:50:28,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 17:50:28,415 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 17:50:28,416 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 17:50:28,416 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 17:50:28,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 17:50:28,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 17:50:28,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 17:50:28,511 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 17:50:28,512 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 17:50:28,512 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label38_false-unreach-call.c [2018-11-07 17:50:28,578 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205586242/68f97899c9d9415a93248caf1c6f8a47/FLAGa2af87c39 [2018-11-07 17:50:29,363 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 17:50:29,364 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label38_false-unreach-call.c [2018-11-07 17:50:29,392 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205586242/68f97899c9d9415a93248caf1c6f8a47/FLAGa2af87c39 [2018-11-07 17:50:29,410 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205586242/68f97899c9d9415a93248caf1c6f8a47 [2018-11-07 17:50:29,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 17:50:29,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 17:50:29,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 17:50:29,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 17:50:29,433 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 17:50:29,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:50:29" (1/1) ... [2018-11-07 17:50:29,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627d1230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:29, skipping insertion in model container [2018-11-07 17:50:29,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:50:29" (1/1) ... [2018-11-07 17:50:29,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 17:50:29,597 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 17:50:30,969 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 17:50:30,975 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 17:50:31,579 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 17:50:31,611 INFO L193 MainTranslator]: Completed translation [2018-11-07 17:50:31,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31 WrapperNode [2018-11-07 17:50:31,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 17:50:31,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 17:50:31,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 17:50:31,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 17:50:31,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:31,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:31,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 17:50:31,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 17:50:31,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 17:50:31,923 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 17:50:31,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:31,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:31,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:31,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:32,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:32,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:32,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (1/1) ... [2018-11-07 17:50:32,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 17:50:32,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 17:50:32,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 17:50:32,162 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 17:50:32,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (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 17:50:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 17:50:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 17:50:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 17:50:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 17:50:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 17:50:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 17:50:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 17:50:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 17:50:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 17:50:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 17:50:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 17:50:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 17:50:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 17:50:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 17:50:32,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 17:50:40,749 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 17:50:40,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:50:40 BoogieIcfgContainer [2018-11-07 17:50:40,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 17:50:40,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 17:50:40,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 17:50:40,755 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 17:50:40,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:50:29" (1/3) ... [2018-11-07 17:50:40,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5e27a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:50:40, skipping insertion in model container [2018-11-07 17:50:40,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:50:31" (2/3) ... [2018-11-07 17:50:40,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5e27a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:50:40, skipping insertion in model container [2018-11-07 17:50:40,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:50:40" (3/3) ... [2018-11-07 17:50:40,759 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label38_false-unreach-call.c [2018-11-07 17:50:40,770 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 17:50:40,782 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 17:50:40,801 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 17:50:40,862 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 17:50:40,862 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 17:50:40,862 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 17:50:40,862 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 17:50:40,863 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 17:50:40,863 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 17:50:40,864 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 17:50:40,864 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 17:50:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 17:50:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-07 17:50:40,920 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:50:40,921 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] [2018-11-07 17:50:40,923 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:50:40,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:50:40,932 INFO L82 PathProgramCache]: Analyzing trace with hash -281779493, now seen corresponding path program 1 times [2018-11-07 17:50:40,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:50:40,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:50:40,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:50:40,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:50:40,991 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:50:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:50:41,413 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 17:50:41,529 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 17:50:41,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:50:41,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 17:50:41,532 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:50:41,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 17:50:41,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 17:50:41,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 17:50:41,558 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 17:50:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:50:49,498 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 17:50:49,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 17:50:49,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-07 17:50:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:50:49,537 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 17:50:49,537 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 17:50:49,551 INFO L604 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 [2018-11-07 17:50:49,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 17:50:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 17:50:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 17:50:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-11-07 17:50:49,714 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 31 [2018-11-07 17:50:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:50:49,715 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-11-07 17:50:49,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 17:50:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-11-07 17:50:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-11-07 17:50:49,721 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:50:49,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:49,722 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:50:49,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:50:49,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1025693032, now seen corresponding path program 1 times [2018-11-07 17:50:49,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:50:49,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:50:49,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:50:49,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:50:49,724 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:50:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:50:50,250 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 17:50:50,250 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:50:50,251 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:50:50,252 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-11-07 17:50:50,254 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2015], [2017], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 17:50:50,317 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:50:50,317 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:50:51,140 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:50:51,142 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 17:50:51,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:50:51,185 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:50:51,727 INFO L227 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 75.36% of their original sizes. [2018-11-07 17:50:51,727 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:50:52,370 INFO L415 sIntCurrentIteration]: We unified 106 AI predicates to 106 [2018-11-07 17:50:52,370 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:50:52,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:50:52,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-07 17:50:52,372 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:50:52,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 17:50:52,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 17:50:52,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 17:50:52,374 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 11 states. [2018-11-07 17:51:01,360 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:51:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:51:59,166 INFO L93 Difference]: Finished difference Result 5512 states and 10057 transitions. [2018-11-07 17:51:59,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 17:51:59,166 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2018-11-07 17:51:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:51:59,186 INFO L225 Difference]: With dead ends: 5512 [2018-11-07 17:51:59,186 INFO L226 Difference]: Without dead ends: 3914 [2018-11-07 17:51:59,193 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 115 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-07 17:51:59,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2018-11-07 17:51:59,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3911. [2018-11-07 17:51:59,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3911 states. [2018-11-07 17:51:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5199 transitions. [2018-11-07 17:51:59,291 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5199 transitions. Word has length 107 [2018-11-07 17:51:59,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:51:59,292 INFO L480 AbstractCegarLoop]: Abstraction has 3911 states and 5199 transitions. [2018-11-07 17:51:59,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 17:51:59,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5199 transitions. [2018-11-07 17:51:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-11-07 17:51:59,303 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:51:59,303 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 17:51:59,303 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:51:59,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:51:59,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1923518015, now seen corresponding path program 1 times [2018-11-07 17:51:59,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:51:59,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:59,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:51:59,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:59,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:51:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:51:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-07 17:51:59,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:51:59,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 17:51:59,675 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:51:59,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 17:51:59,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 17:51:59,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 17:51:59,678 INFO L87 Difference]: Start difference. First operand 3911 states and 5199 transitions. Second operand 3 states. [2018-11-07 17:52:06,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:52:06,128 INFO L93 Difference]: Finished difference Result 7045 states and 10900 transitions. [2018-11-07 17:52:06,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 17:52:06,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2018-11-07 17:52:06,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:52:06,173 INFO L225 Difference]: With dead ends: 7045 [2018-11-07 17:52:06,173 INFO L226 Difference]: Without dead ends: 5447 [2018-11-07 17:52:06,181 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 17:52:06,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2018-11-07 17:52:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 5447. [2018-11-07 17:52:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5447 states. [2018-11-07 17:52:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 7191 transitions. [2018-11-07 17:52:06,322 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 7191 transitions. Word has length 253 [2018-11-07 17:52:06,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:52:06,324 INFO L480 AbstractCegarLoop]: Abstraction has 5447 states and 7191 transitions. [2018-11-07 17:52:06,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 17:52:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 7191 transitions. [2018-11-07 17:52:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-11-07 17:52:06,331 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:52:06,331 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 17:52:06,334 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:52:06,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:52:06,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1465193216, now seen corresponding path program 1 times [2018-11-07 17:52:06,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:52:06,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:06,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:52:06,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:06,336 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:52:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:52:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 51 proven. 68 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 17:52:07,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:52:07,063 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:52:07,064 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 255 with the following transitions: [2018-11-07 17:52:07,064 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2015], [2017], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 17:52:07,087 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:52:07,087 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:52:07,235 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:52:07,461 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:52:07,462 INFO L272 AbstractInterpreter]: Visited 154 different actions 302 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 17:52:07,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:52:07,494 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:52:07,984 INFO L227 lantSequenceWeakener]: Weakened 28 states. On average, predicates are now at 78.19% of their original sizes. [2018-11-07 17:52:07,984 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:52:08,689 INFO L415 sIntCurrentIteration]: We unified 253 AI predicates to 253 [2018-11-07 17:52:08,689 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:52:08,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:52:08,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 17:52:08,690 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:52:08,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 17:52:08,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 17:52:08,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-07 17:52:08,692 INFO L87 Difference]: Start difference. First operand 5447 states and 7191 transitions. Second operand 20 states. Received shutdown request... [2018-11-07 17:53:58,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 17:53:58,043 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 17:53:58,048 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 17:53:58,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:53:58 BoogieIcfgContainer [2018-11-07 17:53:58,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 17:53:58,050 INFO L168 Benchmark]: Toolchain (without parser) took 208627.12 ms. Allocated memory was 1.5 GB in the beginning and 7.2 GB in the end (delta: 5.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB. [2018-11-07 17:53:58,051 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. [2018-11-07 17:53:58,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2185.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 17:53:58,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 309.18 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 809.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2018-11-07 17:53:58,053 INFO L168 Benchmark]: Boogie Preprocessor took 238.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-11-07 17:53:58,054 INFO L168 Benchmark]: RCFGBuilder took 8589.01 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 146.3 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -138.3 MB). Peak memory consumption was 659.5 MB. Max. memory is 7.1 GB. [2018-11-07 17:53:58,055 INFO L168 Benchmark]: TraceAbstraction took 197297.60 ms. Allocated memory was 2.5 GB in the beginning and 7.2 GB in the end (delta: 4.7 GB). Free memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: -606.4 MB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB. [2018-11-07 17:53:58,061 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 2185.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 309.18 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 809.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 238.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8589.01 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 146.3 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -138.3 MB). Peak memory consumption was 659.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197297.60 ms. Allocated memory was 2.5 GB in the beginning and 7.2 GB in the end (delta: 4.7 GB). Free memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: -606.4 MB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 84). Cancelled while BasicCegarLoop was constructing difference of abstraction (5447states) and FLOYD_HOARE automaton (currently 20 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (8709 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 197.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 190.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2740 SDtfs, 8266 SDslu, 1227 SDs, 0 SdLazy, 27609 SolverSat, 3500 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 390 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5447occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9969638800503522 AbsIntWeakeningRatio, 0.13370473537604458 AbsIntAvgWeakeningVarsNumRemoved, 20.601671309192202 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 641 ConstructedInterpolants, 0 QuantifiedInterpolants, 383625 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 185/273 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown