java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label07_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:32:41,063 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:32:41,065 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:32:41,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:32:41,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:32:41,078 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:32:41,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:32:41,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:32:41,082 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:32:41,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:32:41,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:32:41,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:32:41,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:32:41,086 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:32:41,087 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:32:41,088 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:32:41,089 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:32:41,091 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:32:41,093 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:32:41,094 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:32:41,095 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:32:41,096 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:32:41,099 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:32:41,099 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:32:41,099 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:32:41,100 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:32:41,101 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:32:41,102 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:32:41,102 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:32:41,103 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:32:41,104 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:32:41,104 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:32:41,105 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:32:41,105 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:32:41,106 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:32:41,107 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:32:41,107 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 05:32:41,122 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:32:41,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:32:41,123 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:32:41,123 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:32:41,124 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:32:41,124 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:32:41,124 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 05:32:41,124 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:32:41,124 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 05:32:41,125 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:32:41,125 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 05:32:41,125 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:32:41,125 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:32:41,125 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:32:41,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:32:41,126 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:32:41,126 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:32:41,126 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:32:41,127 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:32:41,127 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:32:41,127 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:32:41,127 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:32:41,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:32:41,128 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:32:41,128 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:32:41,128 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:32:41,128 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:32:41,129 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:32:41,129 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:32:41,129 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:32:41,129 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:32:41,129 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:32:41,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:32:41,130 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:32:41,130 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 05:32:41,130 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 05:32:41,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:32:41,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:32:41,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:32:41,205 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:32:41,205 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:32:41,206 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label07_false-unreach-call.c [2018-10-27 05:32:41,273 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9053df6b0/1cba7837eea746dc99b8c63db7f5318a/FLAGad0b4df4a [2018-10-27 05:32:41,945 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:32:41,946 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label07_false-unreach-call.c [2018-10-27 05:32:41,969 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9053df6b0/1cba7837eea746dc99b8c63db7f5318a/FLAGad0b4df4a [2018-10-27 05:32:41,989 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9053df6b0/1cba7837eea746dc99b8c63db7f5318a [2018-10-27 05:32:42,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:32:42,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 05:32:42,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:32:42,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:32:42,011 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:32:42,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:32:41" (1/1) ... [2018-10-27 05:32:42,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b4ec6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:42, skipping insertion in model container [2018-10-27 05:32:42,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:32:41" (1/1) ... [2018-10-27 05:32:42,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:32:42,119 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:32:42,976 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:32:42,980 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:32:43,357 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:32:43,379 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:32:43,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43 WrapperNode [2018-10-27 05:32:43,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:32:43,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:32:43,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:32:43,381 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:32:43,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:32:43,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:32:43,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:32:43,762 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:32:43,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (1/1) ... [2018-10-27 05:32:43,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:32:43,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:32:43,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:32:43,994 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:32:43,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (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 [2018-10-27 05:32:44,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:32:44,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:32:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 05:32:44,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 05:32:44,069 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 05:32:44,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 05:32:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:32:44,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:32:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:32:44,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:32:50,417 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:32:50,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:32:50 BoogieIcfgContainer [2018-10-27 05:32:50,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:32:50,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:32:50,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:32:50,424 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:32:50,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:32:41" (1/3) ... [2018-10-27 05:32:50,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7795f891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:32:50, skipping insertion in model container [2018-10-27 05:32:50,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:32:43" (2/3) ... [2018-10-27 05:32:50,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7795f891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:32:50, skipping insertion in model container [2018-10-27 05:32:50,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:32:50" (3/3) ... [2018-10-27 05:32:50,429 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label07_false-unreach-call.c [2018-10-27 05:32:50,439 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:32:50,450 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 05:32:50,468 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 05:32:50,522 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:32:50,522 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:32:50,522 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:32:50,523 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:32:50,523 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:32:50,523 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:32:50,523 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:32:50,523 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:32:50,555 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 05:32:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-27 05:32:50,562 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:32:50,563 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:32:50,566 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:32:50,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:32:50,572 INFO L82 PathProgramCache]: Analyzing trace with hash 117084481, now seen corresponding path program 1 times [2018-10-27 05:32:50,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:32:50,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:32:50,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:32:50,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:32:50,634 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:32:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:32:50,962 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-27 05:32:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:32:50,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:32:50,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:32:50,971 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:32:50,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:32:50,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:32:50,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:32:50,995 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 05:32:58,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:32:58,357 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-27 05:32:58,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:32:58,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-10-27 05:32:58,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:32:58,386 INFO L225 Difference]: With dead ends: 1558 [2018-10-27 05:32:58,386 INFO L226 Difference]: Without dead ends: 1114 [2018-10-27 05:32:58,397 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:32:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-27 05:32:58,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-10-27 05:32:58,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-10-27 05:32:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-10-27 05:32:58,509 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 17 [2018-10-27 05:32:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:32:58,510 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-10-27 05:32:58,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:32:58,510 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-10-27 05:32:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-27 05:32:58,516 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:32:58,517 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 05:32:58,517 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:32:58,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:32:58,518 INFO L82 PathProgramCache]: Analyzing trace with hash 932863477, now seen corresponding path program 1 times [2018-10-27 05:32:58,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:32:58,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:32:58,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:32:58,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:32:58,520 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:32:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:32:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:32:58,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:32:58,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:32:58,744 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:32:58,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:32:58,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:32:58,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:32:58,748 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 4 states. [2018-10-27 05:33:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:33:04,793 INFO L93 Difference]: Finished difference Result 2757 states and 5143 transitions. [2018-10-27 05:33:04,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:33:04,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2018-10-27 05:33:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:33:04,821 INFO L225 Difference]: With dead ends: 2757 [2018-10-27 05:33:04,821 INFO L226 Difference]: Without dead ends: 2004 [2018-10-27 05:33:04,829 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:33:04,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2018-10-27 05:33:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1999. [2018-10-27 05:33:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2018-10-27 05:33:04,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 3239 transitions. [2018-10-27 05:33:04,908 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 3239 transitions. Word has length 87 [2018-10-27 05:33:04,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:33:04,909 INFO L481 AbstractCegarLoop]: Abstraction has 1999 states and 3239 transitions. [2018-10-27 05:33:04,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:33:04,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 3239 transitions. [2018-10-27 05:33:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-27 05:33:04,919 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:33:04,919 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:33:04,920 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:33:04,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:33:04,920 INFO L82 PathProgramCache]: Analyzing trace with hash 593337787, now seen corresponding path program 1 times [2018-10-27 05:33:04,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:33:04,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:33:04,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:33:04,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:33:04,921 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:33:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:33:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:33:05,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:33:05,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 05:33:05,297 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:33:05,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:33:05,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:33:05,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:33:05,299 INFO L87 Difference]: Start difference. First operand 1999 states and 3239 transitions. Second operand 5 states. [2018-10-27 05:33:20,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:33:20,016 INFO L93 Difference]: Finished difference Result 7066 states and 11537 transitions. [2018-10-27 05:33:20,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 05:33:20,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-10-27 05:33:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:33:20,048 INFO L225 Difference]: With dead ends: 7066 [2018-10-27 05:33:20,048 INFO L226 Difference]: Without dead ends: 5073 [2018-10-27 05:33:20,074 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:33:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5073 states. [2018-10-27 05:33:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5073 to 4992. [2018-10-27 05:33:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2018-10-27 05:33:20,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6705 transitions. [2018-10-27 05:33:20,249 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6705 transitions. Word has length 141 [2018-10-27 05:33:20,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:33:20,250 INFO L481 AbstractCegarLoop]: Abstraction has 4992 states and 6705 transitions. [2018-10-27 05:33:20,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:33:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6705 transitions. [2018-10-27 05:33:20,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-10-27 05:33:20,255 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:33:20,256 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 05:33:20,256 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:33:20,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:33:20,256 INFO L82 PathProgramCache]: Analyzing trace with hash -662320847, now seen corresponding path program 1 times [2018-10-27 05:33:20,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:33:20,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:33:20,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:33:20,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:33:20,262 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:33:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:33:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 23 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-27 05:33:21,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:33:21,030 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:33:21,031 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-10-27 05:33:21,033 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [109], [111], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [816], [821], [823], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 05:33:21,114 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:33:21,114 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:33:22,240 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:33:22,242 INFO L272 AbstractInterpreter]: Visited 130 different actions 377 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 05:33:22,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:33:22,287 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:33:22,852 INFO L227 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 83.22% of their original sizes. [2018-10-27 05:33:22,852 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:33:23,380 INFO L415 sIntCurrentIteration]: We unified 236 AI predicates to 236 [2018-10-27 05:33:23,380 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:33:23,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:33:23,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-10-27 05:33:23,382 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:33:23,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:33:23,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:33:23,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:33:23,383 INFO L87 Difference]: Start difference. First operand 4992 states and 6705 transitions. Second operand 9 states. [2018-10-27 05:34:09,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:34:09,708 INFO L93 Difference]: Finished difference Result 11447 states and 15089 transitions. [2018-10-27 05:34:09,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 05:34:09,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 237 [2018-10-27 05:34:09,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:34:09,743 INFO L225 Difference]: With dead ends: 11447 [2018-10-27 05:34:09,743 INFO L226 Difference]: Without dead ends: 6461 [2018-10-27 05:34:09,759 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-10-27 05:34:09,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6461 states. [2018-10-27 05:34:09,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6461 to 6458. [2018-10-27 05:34:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6458 states. [2018-10-27 05:34:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6458 states to 6458 states and 8237 transitions. [2018-10-27 05:34:09,937 INFO L78 Accepts]: Start accepts. Automaton has 6458 states and 8237 transitions. Word has length 237 [2018-10-27 05:34:09,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:34:09,938 INFO L481 AbstractCegarLoop]: Abstraction has 6458 states and 8237 transitions. [2018-10-27 05:34:09,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:34:09,938 INFO L276 IsEmpty]: Start isEmpty. Operand 6458 states and 8237 transitions. [2018-10-27 05:34:09,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-10-27 05:34:09,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:34:09,948 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:34:09,948 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:34:09,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:34:09,949 INFO L82 PathProgramCache]: Analyzing trace with hash -93859297, now seen corresponding path program 1 times [2018-10-27 05:34:09,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:34:09,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:34:09,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:34:09,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:34:09,950 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:34:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:34:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-10-27 05:34:10,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:34:10,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 05:34:10,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:34:10,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:34:10,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:34:10,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:34:10,791 INFO L87 Difference]: Start difference. First operand 6458 states and 8237 transitions. Second operand 5 states. [2018-10-27 05:34:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:34:20,592 INFO L93 Difference]: Finished difference Result 16135 states and 21645 transitions. [2018-10-27 05:34:20,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 05:34:20,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 403 [2018-10-27 05:34:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:34:20,653 INFO L225 Difference]: With dead ends: 16135 [2018-10-27 05:34:20,654 INFO L226 Difference]: Without dead ends: 11149 [2018-10-27 05:34:20,680 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:34:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2018-10-27 05:34:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 11038. [2018-10-27 05:34:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11038 states. [2018-10-27 05:34:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11038 states to 11038 states and 13597 transitions. [2018-10-27 05:34:20,942 INFO L78 Accepts]: Start accepts. Automaton has 11038 states and 13597 transitions. Word has length 403 [2018-10-27 05:34:20,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:34:20,943 INFO L481 AbstractCegarLoop]: Abstraction has 11038 states and 13597 transitions. [2018-10-27 05:34:20,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:34:20,944 INFO L276 IsEmpty]: Start isEmpty. Operand 11038 states and 13597 transitions. [2018-10-27 05:34:20,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-10-27 05:34:20,958 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:34:20,959 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:34:20,959 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:34:20,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:34:20,960 INFO L82 PathProgramCache]: Analyzing trace with hash 515779473, now seen corresponding path program 1 times [2018-10-27 05:34:20,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:34:20,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:34:20,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:34:20,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:34:20,961 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:34:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:34:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 13 proven. 113 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-27 05:34:21,699 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:34:21,699 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:34:21,699 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 405 with the following transitions: [2018-10-27 05:34:21,700 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [109], [111], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 05:34:21,711 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:34:21,712 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:34:25,560 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 05:34:25,561 INFO L272 AbstractInterpreter]: Visited 284 different actions 846 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 05:34:25,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:34:25,603 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 05:34:25,603 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:34:25,603 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:34:25,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:34:25,620 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 05:34:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:34:25,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:34:41,073 WARN L179 SmtUtils]: Spent 14.94 s on a formula simplification. DAG size of input: 116 DAG size of output: 50 [2018-10-27 05:34:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 119 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:34:41,491 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 05:34:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 119 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:34:42,164 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 05:34:42,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 15 [2018-10-27 05:34:42,164 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 05:34:42,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-27 05:34:42,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-27 05:34:42,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-10-27 05:34:42,166 INFO L87 Difference]: Start difference. First operand 11038 states and 13597 transitions. Second operand 12 states. [2018-10-27 05:34:51,265 WARN L179 SmtUtils]: Spent 5.84 s on a formula simplification that was a NOOP. DAG size: 59 [2018-10-27 05:35:03,182 WARN L179 SmtUtils]: Spent 11.70 s on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-27 05:35:13,281 WARN L179 SmtUtils]: Spent 5.87 s on a formula simplification that was a NOOP. DAG size: 57 [2018-10-27 05:35:14,953 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 27 [2018-10-27 05:35:31,578 WARN L179 SmtUtils]: Spent 11.46 s on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-27 05:35:41,027 WARN L179 SmtUtils]: Spent 5.78 s on a formula simplification that was a NOOP. DAG size: 55 [2018-10-27 05:35:53,258 WARN L179 SmtUtils]: Spent 11.72 s on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-27 05:36:08,333 WARN L179 SmtUtils]: Spent 11.61 s on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2018-10-27 05:36:16,687 WARN L179 SmtUtils]: Spent 5.81 s on a formula simplification that was a NOOP. DAG size: 57 [2018-10-27 05:36:22,748 WARN L179 SmtUtils]: Spent 5.91 s on a formula simplification that was a NOOP. DAG size: 59 [2018-10-27 05:36:29,141 WARN L179 SmtUtils]: Spent 5.90 s on a formula simplification that was a NOOP. DAG size: 56 [2018-10-27 05:36:37,368 WARN L179 SmtUtils]: Spent 5.86 s on a formula simplification that was a NOOP. DAG size: 53 [2018-10-27 05:36:51,216 WARN L179 SmtUtils]: Spent 11.45 s on a formula simplification. DAG size of input: 57 DAG size of output: 56 Received shutdown request... [2018-10-27 05:36:54,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-10-27 05:36:54,513 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 05:36:54,520 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 05:36:54,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:36:54 BoogieIcfgContainer [2018-10-27 05:36:54,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:36:54,522 INFO L168 Benchmark]: Toolchain (without parser) took 252520.88 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 871.2 MB. Max. memory is 7.1 GB. [2018-10-27 05:36:54,523 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. [2018-10-27 05:36:54,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1376.98 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-27 05:36:54,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 380.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -857.9 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-27 05:36:54,527 INFO L168 Benchmark]: Boogie Preprocessor took 231.62 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2018-10-27 05:36:54,528 INFO L168 Benchmark]: RCFGBuilder took 6424.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 316.7 MB). Peak memory consumption was 316.7 MB. Max. memory is 7.1 GB. [2018-10-27 05:36:54,529 INFO L168 Benchmark]: TraceAbstraction took 244101.38 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 548.2 MB. Max. memory is 7.1 GB. [2018-10-27 05:36:54,533 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 1376.98 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 380.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -857.9 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 231.62 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6424.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 316.7 MB). Peak memory consumption was 316.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244101.38 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 548.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (11038states) and FLOYD_HOARE automaton (currently 52 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (9236 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 244.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 216.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1250 SDtfs, 8593 SDslu, 1689 SDs, 0 SdLazy, 14647 SolverSat, 2752 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 94.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1154 GetRequests, 1067 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 117.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11038occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9967419871470877 AbsIntWeakeningRatio, 0.11440677966101695 AbsIntAvgWeakeningVarsNumRemoved, 14.35593220338983 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 555 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.7s InterpolantComputationTime, 1693 NumberOfCodeBlocks, 1693 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2089 ConstructedInterpolants, 13 QuantifiedInterpolants, 2554145 SizeOfPredicates, 3 NumberOfNonLiveVariables, 583 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 610/836 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown