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/Problem18_label21_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:40:42,054 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:40:42,056 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:40:42,069 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:40:42,069 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:40:42,070 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:40:42,071 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:40:42,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:40:42,075 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:40:42,076 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:40:42,077 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:40:42,077 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:40:42,078 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:40:42,079 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:40:42,080 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:40:42,081 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:40:42,082 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:40:42,084 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:40:42,086 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:40:42,088 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:40:42,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:40:42,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:40:42,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:40:42,093 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:40:42,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:40:42,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:40:42,095 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:40:42,096 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:40:42,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:40:42,098 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:40:42,098 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:40:42,099 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:40:42,099 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:40:42,099 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:40:42,100 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:40:42,101 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:40:42,101 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 [2018-11-12 19:40:42,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:40:42,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:40:42,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:40:42,131 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:40:42,132 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:40:42,132 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:40:42,132 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:40:42,132 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:40:42,132 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:40:42,133 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:40:42,133 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:40:42,133 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:40:42,133 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:40:42,134 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:40:42,134 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:40:42,134 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:40:42,136 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:40:42,136 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:40:42,136 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:40:42,137 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:40:42,137 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:40:42,137 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:40:42,137 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:40:42,137 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:40:42,138 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:40:42,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:40:42,138 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:40:42,139 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:40:42,139 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:40:42,139 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:40:42,139 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:40:42,139 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:40:42,140 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:40:42,140 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:40:42,140 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:40:42,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:40:42,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:40:42,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:40:42,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:40:42,238 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:40:42,239 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label21_true-unreach-call.c [2018-11-12 19:40:42,304 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ae47d89/16fc9d1d74674c66909a60a50d59ca31/FLAG580a38f09 [2018-11-12 19:40:43,111 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:40:43,114 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label21_true-unreach-call.c [2018-11-12 19:40:43,143 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ae47d89/16fc9d1d74674c66909a60a50d59ca31/FLAG580a38f09 [2018-11-12 19:40:43,163 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ae47d89/16fc9d1d74674c66909a60a50d59ca31 [2018-11-12 19:40:43,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:40:43,178 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:40:43,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:40:43,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:40:43,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:40:43,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:40:43" (1/1) ... [2018-11-12 19:40:43,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b57dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:43, skipping insertion in model container [2018-11-12 19:40:43,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:40:43" (1/1) ... [2018-11-12 19:40:43,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:40:43,358 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:40:44,507 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:40:44,516 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:40:44,991 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:40:45,023 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:40:45,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45 WrapperNode [2018-11-12 19:40:45,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:40:45,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:40:45,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:40:45,025 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:40:45,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:40:45,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:40:45,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:40:45,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:40:45,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (1/1) ... [2018-11-12 19:40:45,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:40:45,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:40:45,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:40:45,546 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:40:45,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (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 [2018-11-12 19:40:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:40:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:40:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:40:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 19:40:45,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 19:40:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:40:45,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:40:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:40:45,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:40:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:40:45,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:40:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:40:45,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:40:53,719 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:40:53,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:40:53 BoogieIcfgContainer [2018-11-12 19:40:53,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:40:53,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:40:53,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:40:53,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:40:53,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:40:43" (1/3) ... [2018-11-12 19:40:53,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c73831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:40:53, skipping insertion in model container [2018-11-12 19:40:53,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:45" (2/3) ... [2018-11-12 19:40:53,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c73831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:40:53, skipping insertion in model container [2018-11-12 19:40:53,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:40:53" (3/3) ... [2018-11-12 19:40:53,728 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label21_true-unreach-call.c [2018-11-12 19:40:53,738 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:40:53,749 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:40:53,767 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:40:53,812 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:40:53,812 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:40:53,812 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:40:53,812 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:40:53,813 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:40:53,813 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:40:53,813 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:40:53,813 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:40:53,853 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-12 19:40:53,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-12 19:40:53,863 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:40:53,865 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:40:53,868 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:40:53,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:40:53,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1608730383, now seen corresponding path program 1 times [2018-11-12 19:40:53,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:40:53,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:53,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:40:53,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:53,936 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:40:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:40:54,387 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:40:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:40:54,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:40:54,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:40:54,516 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:40:54,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:40:54,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:40:54,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:40:54,543 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-12 19:41:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:01,333 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-12 19:41:01,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:41:01,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2018-11-12 19:41:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:01,370 INFO L225 Difference]: With dead ends: 2251 [2018-11-12 19:41:01,371 INFO L226 Difference]: Without dead ends: 1474 [2018-11-12 19:41:01,383 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 [2018-11-12 19:41:01,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-12 19:41:01,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-12 19:41:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-12 19:41:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-11-12 19:41:01,538 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 65 [2018-11-12 19:41:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:01,539 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-11-12 19:41:01,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:41:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-11-12 19:41:01,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-12 19:41:01,552 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:01,553 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:41:01,553 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:01,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:01,553 INFO L82 PathProgramCache]: Analyzing trace with hash -172634104, now seen corresponding path program 1 times [2018-11-12 19:41:01,554 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:01,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:01,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:01,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:01,556 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:01,885 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:41:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:41:01,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:41:01,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:41:01,959 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:01,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:41:01,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:41:01,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:41:01,962 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-11-12 19:41:14,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:14,014 INFO L93 Difference]: Finished difference Result 5789 states and 11192 transitions. [2018-11-12 19:41:14,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:41:14,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-11-12 19:41:14,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:14,055 INFO L225 Difference]: With dead ends: 5789 [2018-11-12 19:41:14,055 INFO L226 Difference]: Without dead ends: 4321 [2018-11-12 19:41:14,065 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:41:14,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4321 states. [2018-11-12 19:41:14,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 4295. [2018-11-12 19:41:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4295 states. [2018-11-12 19:41:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 7032 transitions. [2018-11-12 19:41:14,217 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 7032 transitions. Word has length 139 [2018-11-12 19:41:14,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:14,218 INFO L480 AbstractCegarLoop]: Abstraction has 4295 states and 7032 transitions. [2018-11-12 19:41:14,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:41:14,218 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 7032 transitions. [2018-11-12 19:41:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-11-12 19:41:14,230 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:14,230 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:41:14,231 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:14,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:14,231 INFO L82 PathProgramCache]: Analyzing trace with hash -399833123, now seen corresponding path program 1 times [2018-11-12 19:41:14,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:14,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:14,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:14,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:14,236 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:14,660 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:41:15,262 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:41:15,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:41:15,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:41:15,262 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:15,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:41:15,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:41:15,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:41:15,264 INFO L87 Difference]: Start difference. First operand 4295 states and 7032 transitions. Second operand 6 states. [2018-11-12 19:41:21,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:21,542 INFO L93 Difference]: Finished difference Result 10084 states and 16817 transitions. [2018-11-12 19:41:21,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:41:21,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 228 [2018-11-12 19:41:21,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:21,590 INFO L225 Difference]: With dead ends: 10084 [2018-11-12 19:41:21,591 INFO L226 Difference]: Without dead ends: 5795 [2018-11-12 19:41:21,604 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:41:21,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2018-11-12 19:41:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5766. [2018-11-12 19:41:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5766 states. [2018-11-12 19:41:21,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 9291 transitions. [2018-11-12 19:41:21,806 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 9291 transitions. Word has length 228 [2018-11-12 19:41:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:21,807 INFO L480 AbstractCegarLoop]: Abstraction has 5766 states and 9291 transitions. [2018-11-12 19:41:21,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:41:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 9291 transitions. [2018-11-12 19:41:21,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-11-12 19:41:21,818 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:21,819 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:41:21,819 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:21,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:21,820 INFO L82 PathProgramCache]: Analyzing trace with hash 2045090159, now seen corresponding path program 1 times [2018-11-12 19:41:21,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:21,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:21,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:21,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:21,821 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:22,181 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 116 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:41:22,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:41:22,182 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:41:22,183 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-11-12 19:41:22,188 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2043], [2045], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2280], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:41:22,242 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:41:22,243 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:41:23,001 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:41:23,004 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1031 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1031 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:41:23,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:23,058 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:41:23,771 INFO L227 lantSequenceWeakener]: Weakened 262 states. On average, predicates are now at 78.08% of their original sizes. [2018-11-12 19:41:23,772 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:41:24,057 INFO L415 sIntCurrentIteration]: We unified 270 AI predicates to 270 [2018-11-12 19:41:24,058 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:41:24,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:41:24,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-12 19:41:24,059 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:24,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:41:24,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:41:24,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:41:24,061 INFO L87 Difference]: Start difference. First operand 5766 states and 9291 transitions. Second operand 7 states. [2018-11-12 19:41:31,484 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:42:00,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:42:00,628 INFO L93 Difference]: Finished difference Result 12231 states and 19736 transitions. [2018-11-12 19:42:00,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:42:00,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2018-11-12 19:42:00,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:42:00,664 INFO L225 Difference]: With dead ends: 12231 [2018-11-12 19:42:00,664 INFO L226 Difference]: Without dead ends: 6471 [2018-11-12 19:42:00,682 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 271 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:42:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6471 states. [2018-11-12 19:42:00,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6471 to 6469. [2018-11-12 19:42:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6469 states. [2018-11-12 19:42:00,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6469 states to 6469 states and 10003 transitions. [2018-11-12 19:42:00,857 INFO L78 Accepts]: Start accepts. Automaton has 6469 states and 10003 transitions. Word has length 271 [2018-11-12 19:42:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:42:00,858 INFO L480 AbstractCegarLoop]: Abstraction has 6469 states and 10003 transitions. [2018-11-12 19:42:00,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 19:42:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 6469 states and 10003 transitions. [2018-11-12 19:42:00,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2018-11-12 19:42:00,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:42:00,875 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 19:42:00,876 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:42:00,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:00,876 INFO L82 PathProgramCache]: Analyzing trace with hash 181571693, now seen corresponding path program 1 times [2018-11-12 19:42:00,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:42:00,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:00,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:42:00,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:00,878 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:42:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:42:02,479 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 233 proven. 237 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:42:02,480 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:42:02,480 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:42:02,480 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 459 with the following transitions: [2018-11-12 19:42:02,481 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2043], [2045], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2280], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [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], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:42:02,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:42:02,489 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:42:03,308 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:42:03,309 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Performed 5891 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5891 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:42:03,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:03,348 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:42:04,647 INFO L227 lantSequenceWeakener]: Weakened 99 states. On average, predicates are now at 77.5% of their original sizes. [2018-11-12 19:42:04,648 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:42:05,414 INFO L415 sIntCurrentIteration]: We unified 457 AI predicates to 457 [2018-11-12 19:42:05,414 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:42:05,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:42:05,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [11] total 24 [2018-11-12 19:42:05,415 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:42:05,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-12 19:42:05,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-12 19:42:05,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-11-12 19:42:05,416 INFO L87 Difference]: Start difference. First operand 6469 states and 10003 transitions. Second operand 15 states. [2018-11-12 19:42:23,109 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:43:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:43:06,114 INFO L93 Difference]: Finished difference Result 14040 states and 22097 transitions. [2018-11-12 19:43:06,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:43:06,115 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 458 [2018-11-12 19:43:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:43:06,160 INFO L225 Difference]: With dead ends: 14040 [2018-11-12 19:43:06,160 INFO L226 Difference]: Without dead ends: 8280 [2018-11-12 19:43:06,177 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 465 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:43:06,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2018-11-12 19:43:06,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 8027. [2018-11-12 19:43:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8027 states. [2018-11-12 19:43:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8027 states to 8027 states and 11591 transitions. [2018-11-12 19:43:06,375 INFO L78 Accepts]: Start accepts. Automaton has 8027 states and 11591 transitions. Word has length 458 [2018-11-12 19:43:06,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:43:06,376 INFO L480 AbstractCegarLoop]: Abstraction has 8027 states and 11591 transitions. [2018-11-12 19:43:06,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-12 19:43:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 8027 states and 11591 transitions. [2018-11-12 19:43:06,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2018-11-12 19:43:06,398 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:43:06,399 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:43:06,400 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:43:06,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:06,401 INFO L82 PathProgramCache]: Analyzing trace with hash 317756775, now seen corresponding path program 1 times [2018-11-12 19:43:06,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:43:06,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:06,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:43:06,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:06,406 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:43:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:43:06,908 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-12 19:43:07,611 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 283 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:43:07,611 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:43:07,612 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:43:07,612 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 598 with the following transitions: [2018-11-12 19:43:07,613 INFO L202 CegarAbsIntRunner]: [0], [1], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [939], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2003], [2005], [2007], [2015], [2023], [2031], [2039], [2043], [2045], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [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], [2584], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:43:07,622 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:43:07,622 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:43:16,752 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:43:16,752 INFO L272 AbstractInterpreter]: Visited 351 different actions 827 times. Merged at 135 different actions 135 times. Never widened. Performed 11519 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11519 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 19:43:16,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:16,760 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:43:17,589 INFO L227 lantSequenceWeakener]: Weakened 323 states. On average, predicates are now at 77.56% of their original sizes. [2018-11-12 19:43:17,589 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:43:17,949 INFO L415 sIntCurrentIteration]: We unified 596 AI predicates to 596 [2018-11-12 19:43:17,949 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:43:17,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:43:17,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-11-12 19:43:17,950 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:43:17,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 19:43:17,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 19:43:17,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:43:17,952 INFO L87 Difference]: Start difference. First operand 8027 states and 11591 transitions. Second operand 20 states. [2018-11-12 19:43:50,800 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:44:19,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-12 19:44:19,972 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:44:19,977 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:44:19,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:44:19 BoogieIcfgContainer [2018-11-12 19:44:19,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:44:19,978 INFO L168 Benchmark]: Toolchain (without parser) took 216801.80 ms. Allocated memory was 1.5 GB in the beginning and 5.5 GB in the end (delta: 4.0 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -110.8 MB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2018-11-12 19:44:19,979 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-12 19:44:19,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1844.49 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:19,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 278.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -974.0 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:19,982 INFO L168 Benchmark]: Boogie Preprocessor took 240.72 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:19,982 INFO L168 Benchmark]: RCFGBuilder took 8174.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 498.1 MB). Peak memory consumption was 498.1 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:19,983 INFO L168 Benchmark]: TraceAbstraction took 206257.18 ms. Allocated memory was 2.3 GB in the beginning and 5.5 GB in the end (delta: 3.2 GB). Free memory was 1.7 GB in the beginning and 1.5 GB in the end (delta: 203.3 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-11-12 19:44:19,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1844.49 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 278.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -974.0 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 240.72 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8174.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 498.1 MB). Peak memory consumption was 498.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206257.18 ms. Allocated memory was 2.3 GB in the beginning and 5.5 GB in the end (delta: 3.2 GB). Free memory was 1.7 GB in the beginning and 1.5 GB in the end (delta: 203.3 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while BasicCegarLoop was constructing difference of abstraction (8027states) and FLOYD_HOARE automaton (currently 26 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (14701 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 206.1s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 184.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2530 SDtfs, 21776 SDslu, 1248 SDs, 0 SdLazy, 37632 SolverSat, 6189 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1373 GetRequests, 1293 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8027occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.8s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9981951527500186 AbsIntWeakeningRatio, 0.06651549508692366 AbsIntAvgWeakeningVarsNumRemoved, 15.081632653061224 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 310 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1758 NumberOfCodeBlocks, 1758 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1752 ConstructedInterpolants, 0 QuantifiedInterpolants, 3188335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 758/1105 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown