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/Problem19_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 17:03:05,117 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 17:03:05,119 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 17:03:05,131 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 17:03:05,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 17:03:05,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 17:03:05,134 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 17:03:05,136 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 17:03:05,137 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 17:03:05,138 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 17:03:05,139 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 17:03:05,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 17:03:05,140 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 17:03:05,141 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 17:03:05,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 17:03:05,143 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 17:03:05,144 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 17:03:05,146 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 17:03:05,148 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 17:03:05,150 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 17:03:05,151 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 17:03:05,152 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 17:03:05,154 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 17:03:05,155 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 17:03:05,155 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 17:03:05,156 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 17:03:05,157 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 17:03:05,158 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 17:03:05,158 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 17:03:05,160 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 17:03:05,160 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 17:03:05,161 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-12 17:03:05,163 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 17:03:05,179 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 17:03:05,179 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 17:03:05,180 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 17:03:05,180 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 17:03:05,180 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 17:03:05,181 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 17:03:05,181 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 17:03:05,181 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 17:03:05,181 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 17:03:05,181 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 17:03:05,182 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 17:03:05,182 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 17:03:05,182 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 17:03:05,183 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 17:03:05,183 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 17:03:05,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 17:03:05,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 17:03:05,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 17:03:05,184 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 17:03:05,184 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 17:03:05,184 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 17:03:05,184 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 17:03:05,184 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 17:03:05,185 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 17:03:05,185 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 17:03:05,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 17:03:05,185 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 17:03:05,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 17:03:05,186 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 17:03:05,186 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 17:03:05,186 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 17:03:05,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 17:03:05,186 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 17:03:05,187 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 17:03:05,187 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 17:03:05,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 17:03:05,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 17:03:05,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 17:03:05,259 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 17:03:05,260 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 17:03:05,261 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-11-12 17:03:05,323 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ada61907/3141972a0f3742e48b5ce963f8ebf55f/FLAG8917c274b [2018-11-12 17:03:06,233 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 17:03:06,234 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-11-12 17:03:06,287 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ada61907/3141972a0f3742e48b5ce963f8ebf55f/FLAG8917c274b [2018-11-12 17:03:06,303 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ada61907/3141972a0f3742e48b5ce963f8ebf55f [2018-11-12 17:03:06,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 17:03:06,316 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 17:03:06,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 17:03:06,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 17:03:06,322 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 17:03:06,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:03:06" (1/1) ... [2018-11-12 17:03:06,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7008f5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:06, skipping insertion in model container [2018-11-12 17:03:06,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:03:06" (1/1) ... [2018-11-12 17:03:06,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 17:03:06,568 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 17:03:08,556 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:03:08,563 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 17:03:09,681 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:03:09,741 INFO L193 MainTranslator]: Completed translation [2018-11-12 17:03:09,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09 WrapperNode [2018-11-12 17:03:09,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 17:03:09,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 17:03:09,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 17:03:09,743 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 17:03:10,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 17:03:10,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 17:03:10,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 17:03:10,310 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 17:03:10,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (1/1) ... [2018-11-12 17:03:10,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 17:03:10,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 17:03:10,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 17:03:10,792 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 17:03:10,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (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 17:03:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 17:03:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 17:03:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 17:03:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-12 17:03:10,865 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-12 17:03:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-12 17:03:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-12 17:03:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 17:03:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 17:03:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 17:03:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 17:03:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 17:03:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 17:03:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 17:03:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 17:03:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 17:03:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 17:03:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 17:03:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 17:03:25,523 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 17:03:25,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:03:25 BoogieIcfgContainer [2018-11-12 17:03:25,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 17:03:25,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 17:03:25,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 17:03:25,528 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 17:03:25,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:03:06" (1/3) ... [2018-11-12 17:03:25,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e19cdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:03:25, skipping insertion in model container [2018-11-12 17:03:25,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:09" (2/3) ... [2018-11-12 17:03:25,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e19cdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:03:25, skipping insertion in model container [2018-11-12 17:03:25,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:03:25" (3/3) ... [2018-11-12 17:03:25,532 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label31_false-unreach-call.c [2018-11-12 17:03:25,543 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 17:03:25,553 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 17:03:25,572 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 17:03:25,623 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 17:03:25,624 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 17:03:25,624 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 17:03:25,624 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 17:03:25,624 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 17:03:25,624 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 17:03:25,624 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 17:03:25,624 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 17:03:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-12 17:03:25,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-12 17:03:25,684 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:03:25,685 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] [2018-11-12 17:03:25,687 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:03:25,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:03:25,694 INFO L82 PathProgramCache]: Analyzing trace with hash -46627102, now seen corresponding path program 1 times [2018-11-12 17:03:25,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:03:25,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:25,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:03:25,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:25,754 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:03:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:03:26,161 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-12 17:03:26,171 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 17:03:26,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:03:26,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 17:03:26,174 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:03:26,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 17:03:26,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 17:03:26,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 17:03:26,203 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-11-12 17:03:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:03:47,727 INFO L93 Difference]: Finished difference Result 6510 states and 12381 transitions. [2018-11-12 17:03:47,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 17:03:47,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-12 17:03:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:03:47,790 INFO L225 Difference]: With dead ends: 6510 [2018-11-12 17:03:47,791 INFO L226 Difference]: Without dead ends: 4726 [2018-11-12 17:03:47,806 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 17:03:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2018-11-12 17:03:48,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4687. [2018-11-12 17:03:48,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4687 states. [2018-11-12 17:03:48,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 7413 transitions. [2018-11-12 17:03:48,035 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 7413 transitions. Word has length 25 [2018-11-12 17:03:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:03:48,036 INFO L480 AbstractCegarLoop]: Abstraction has 4687 states and 7413 transitions. [2018-11-12 17:03:48,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 17:03:48,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 7413 transitions. [2018-11-12 17:03:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-12 17:03:48,044 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:03:48,044 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:03:48,045 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:03:48,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:03:48,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1494707308, now seen corresponding path program 1 times [2018-11-12 17:03:48,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:03:48,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:48,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:03:48,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:48,047 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:03:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:03:48,416 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 17:03:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:03:48,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:03:48,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 17:03:48,831 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:03:48,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 17:03:48,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 17:03:48,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 17:03:48,833 INFO L87 Difference]: Start difference. First operand 4687 states and 7413 transitions. Second operand 6 states. [2018-11-12 17:04:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:11,467 INFO L93 Difference]: Finished difference Result 17857 states and 28865 transitions. [2018-11-12 17:04:11,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:04:11,468 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2018-11-12 17:04:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:11,542 INFO L225 Difference]: With dead ends: 17857 [2018-11-12 17:04:11,542 INFO L226 Difference]: Without dead ends: 13176 [2018-11-12 17:04:11,565 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 17:04:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13176 states. [2018-11-12 17:04:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13176 to 13105. [2018-11-12 17:04:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13105 states. [2018-11-12 17:04:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13105 states to 13105 states and 18702 transitions. [2018-11-12 17:04:11,915 INFO L78 Accepts]: Start accepts. Automaton has 13105 states and 18702 transitions. Word has length 97 [2018-11-12 17:04:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:11,917 INFO L480 AbstractCegarLoop]: Abstraction has 13105 states and 18702 transitions. [2018-11-12 17:04:11,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 17:04:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 13105 states and 18702 transitions. [2018-11-12 17:04:11,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-12 17:04:11,925 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:11,926 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:04:11,926 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:11,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:11,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1774273419, now seen corresponding path program 1 times [2018-11-12 17:04:11,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:11,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:11,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:11,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:11,929 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:12,460 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 17:04:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:04:12,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:04:12,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 17:04:12,595 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:12,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 17:04:12,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 17:04:12,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 17:04:12,596 INFO L87 Difference]: Start difference. First operand 13105 states and 18702 transitions. Second operand 6 states. [2018-11-12 17:04:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:32,829 INFO L93 Difference]: Finished difference Result 43695 states and 64626 transitions. [2018-11-12 17:04:32,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:04:32,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-11-12 17:04:32,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:32,950 INFO L225 Difference]: With dead ends: 43695 [2018-11-12 17:04:32,951 INFO L226 Difference]: Without dead ends: 30596 [2018-11-12 17:04:33,003 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 17:04:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30596 states. [2018-11-12 17:04:33,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30596 to 30433. [2018-11-12 17:04:33,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30433 states. [2018-11-12 17:04:33,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30433 states to 30433 states and 42880 transitions. [2018-11-12 17:04:33,647 INFO L78 Accepts]: Start accepts. Automaton has 30433 states and 42880 transitions. Word has length 99 [2018-11-12 17:04:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:33,648 INFO L480 AbstractCegarLoop]: Abstraction has 30433 states and 42880 transitions. [2018-11-12 17:04:33,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 17:04:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 30433 states and 42880 transitions. [2018-11-12 17:04:33,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-11-12 17:04:33,650 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:33,657 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:04:33,657 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:33,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:33,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1185268562, now seen corresponding path program 1 times [2018-11-12 17:04:33,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:33,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:33,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:33,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:33,659 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:04:34,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:04:34,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 17:04:34,153 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:34,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 17:04:34,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 17:04:34,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 17:04:34,155 INFO L87 Difference]: Start difference. First operand 30433 states and 42880 transitions. Second operand 6 states. [2018-11-12 17:04:51,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:51,026 INFO L93 Difference]: Finished difference Result 92582 states and 135326 transitions. [2018-11-12 17:04:51,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 17:04:51,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2018-11-12 17:04:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:51,261 INFO L225 Difference]: With dead ends: 92582 [2018-11-12 17:04:51,261 INFO L226 Difference]: Without dead ends: 62155 [2018-11-12 17:04:51,345 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 17:04:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62155 states. [2018-11-12 17:04:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62155 to 61702. [2018-11-12 17:04:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61702 states. [2018-11-12 17:04:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61702 states to 61702 states and 86747 transitions. [2018-11-12 17:04:52,939 INFO L78 Accepts]: Start accepts. Automaton has 61702 states and 86747 transitions. Word has length 107 [2018-11-12 17:04:52,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:52,940 INFO L480 AbstractCegarLoop]: Abstraction has 61702 states and 86747 transitions. [2018-11-12 17:04:52,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 17:04:52,940 INFO L276 IsEmpty]: Start isEmpty. Operand 61702 states and 86747 transitions. [2018-11-12 17:04:52,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-12 17:04:52,947 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:52,947 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:04:52,947 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:52,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:52,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1569355644, now seen corresponding path program 1 times [2018-11-12 17:04:52,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:52,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:52,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:52,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:52,949 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:04:53,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:04:53,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 17:04:53,325 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:53,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 17:04:53,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 17:04:53,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 17:04:53,326 INFO L87 Difference]: Start difference. First operand 61702 states and 86747 transitions. Second operand 5 states. [2018-11-12 17:05:12,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:05:12,364 INFO L93 Difference]: Finished difference Result 187064 states and 273246 transitions. [2018-11-12 17:05:12,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 17:05:12,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-11-12 17:05:12,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:05:12,731 INFO L225 Difference]: With dead ends: 187064 [2018-11-12 17:05:12,732 INFO L226 Difference]: Without dead ends: 125368 [2018-11-12 17:05:12,847 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 17:05:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125368 states. [2018-11-12 17:05:14,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125368 to 124107. [2018-11-12 17:05:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124107 states. [2018-11-12 17:05:16,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124107 states to 124107 states and 162846 transitions. [2018-11-12 17:05:16,314 INFO L78 Accepts]: Start accepts. Automaton has 124107 states and 162846 transitions. Word has length 127 [2018-11-12 17:05:16,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:05:16,315 INFO L480 AbstractCegarLoop]: Abstraction has 124107 states and 162846 transitions. [2018-11-12 17:05:16,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 17:05:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 124107 states and 162846 transitions. [2018-11-12 17:05:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-12 17:05:16,319 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:05:16,319 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:05:16,319 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:05:16,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:05:16,321 INFO L82 PathProgramCache]: Analyzing trace with hash 140476345, now seen corresponding path program 1 times [2018-11-12 17:05:16,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:05:16,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:05:16,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:05:16,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:05:16,322 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:05:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:05:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:05:16,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:05:16,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 17:05:16,642 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:05:16,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 17:05:16,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 17:05:16,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 17:05:16,643 INFO L87 Difference]: Start difference. First operand 124107 states and 162846 transitions. Second operand 6 states. [2018-11-12 17:05:33,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:05:33,143 INFO L93 Difference]: Finished difference Result 280373 states and 387158 transitions. [2018-11-12 17:05:33,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:05:33,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2018-11-12 17:05:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:05:33,534 INFO L225 Difference]: With dead ends: 280373 [2018-11-12 17:05:33,534 INFO L226 Difference]: Without dead ends: 156272 [2018-11-12 17:05:33,680 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 17:05:33,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156272 states. [2018-11-12 17:05:35,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156272 to 155340. [2018-11-12 17:05:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155340 states. [2018-11-12 17:05:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155340 states to 155340 states and 204851 transitions. [2018-11-12 17:05:36,195 INFO L78 Accepts]: Start accepts. Automaton has 155340 states and 204851 transitions. Word has length 190 [2018-11-12 17:05:36,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:05:36,196 INFO L480 AbstractCegarLoop]: Abstraction has 155340 states and 204851 transitions. [2018-11-12 17:05:36,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 17:05:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 155340 states and 204851 transitions. [2018-11-12 17:05:36,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2018-11-12 17:05:36,216 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:05:36,216 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:36,217 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:05:36,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:05:36,217 INFO L82 PathProgramCache]: Analyzing trace with hash -979343248, now seen corresponding path program 1 times [2018-11-12 17:05:36,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:05:36,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:05:36,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:05:36,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:05:36,219 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:05:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:05:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:05:37,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:05:37,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 17:05:37,742 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:05:37,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 17:05:37,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 17:05:37,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 17:05:37,744 INFO L87 Difference]: Start difference. First operand 155340 states and 204851 transitions. Second operand 4 states. [2018-11-12 17:05:55,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:05:55,602 INFO L93 Difference]: Finished difference Result 430677 states and 597174 transitions. [2018-11-12 17:05:55,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 17:05:55,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 619 [2018-11-12 17:05:55,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:05:56,328 INFO L225 Difference]: With dead ends: 430677 [2018-11-12 17:05:56,328 INFO L226 Difference]: Without dead ends: 275343 [2018-11-12 17:05:56,576 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 17:05:56,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275343 states. [2018-11-12 17:06:02,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275343 to 275064. [2018-11-12 17:06:02,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275064 states. [2018-11-12 17:06:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275064 states to 275064 states and 365471 transitions. [2018-11-12 17:06:02,595 INFO L78 Accepts]: Start accepts. Automaton has 275064 states and 365471 transitions. Word has length 619 [2018-11-12 17:06:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:06:02,596 INFO L480 AbstractCegarLoop]: Abstraction has 275064 states and 365471 transitions. [2018-11-12 17:06:02,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 17:06:02,596 INFO L276 IsEmpty]: Start isEmpty. Operand 275064 states and 365471 transitions. [2018-11-12 17:06:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2018-11-12 17:06:02,639 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:06:02,640 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:06:02,640 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:06:02,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:06:02,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1559642787, now seen corresponding path program 1 times [2018-11-12 17:06:02,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:06:02,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:06:02,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:06:02,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:06:02,642 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:06:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:06:03,382 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-12 17:06:03,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:06:03,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 17:06:03,383 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:06:03,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 17:06:03,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 17:06:03,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 17:06:03,385 INFO L87 Difference]: Start difference. First operand 275064 states and 365471 transitions. Second operand 4 states. [2018-11-12 17:06:24,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:06:24,395 INFO L93 Difference]: Finished difference Result 631436 states and 856613 transitions. [2018-11-12 17:06:24,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 17:06:24,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 837 [2018-11-12 17:06:24,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:06:25,311 INFO L225 Difference]: With dead ends: 631436 [2018-11-12 17:06:25,311 INFO L226 Difference]: Without dead ends: 356378 [2018-11-12 17:06:26,656 INFO L604 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 [2018-11-12 17:06:26,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356378 states. [2018-11-12 17:06:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356378 to 356275. [2018-11-12 17:06:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356275 states. [2018-11-12 17:06:31,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356275 states to 356275 states and 447295 transitions. [2018-11-12 17:06:31,799 INFO L78 Accepts]: Start accepts. Automaton has 356275 states and 447295 transitions. Word has length 837 [2018-11-12 17:06:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:06:31,801 INFO L480 AbstractCegarLoop]: Abstraction has 356275 states and 447295 transitions. [2018-11-12 17:06:31,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 17:06:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 356275 states and 447295 transitions. [2018-11-12 17:06:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1188 [2018-11-12 17:06:31,964 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:06:31,965 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:31,966 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:06:31,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:06:31,966 INFO L82 PathProgramCache]: Analyzing trace with hash 2078851552, now seen corresponding path program 1 times [2018-11-12 17:06:31,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:06:31,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:06:31,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:06:31,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:06:31,968 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:06:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:06:35,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 287 proven. 101 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2018-11-12 17:06:35,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:06:35,651 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:06:35,652 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1188 with the following transitions: [2018-11-12 17:06:35,656 INFO L202 CegarAbsIntRunner]: [0], [1], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3116], [3127], [3131], [3135], [3146], [3150], [3154], [3158], [3169], [3173], [3184], [3188], [3192], [3196], [3200], [3204], [3208], [3212], [3216], [3220], [3224], [3228], [3232], [3236], [3240], [3251], [3255], [3259], [3263], [3267], [3271], [3275], [3279], [3283], [3287], [3291], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3361], [3365], [3376], [3380], [3384], [3395], [3399], [3403], [3407], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3457], [3461], [3465], [3469], [3473], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3512], [3516], [3520], [3524], [3528], [3532], [3536], [3540], [3544], [3548], [3552], [3556], [3567], [3571], [3575], [3579], [3583], [3587], [3591], [3595], [3599], [3603], [3607], [3610], [4195], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5144], [5148], [5152], [5156], [5167], [5171], [5175], [5179], [5183], [5187], [5191], [5195], [5199], [5203], [5207], [5211], [5215], [5219], [5223], [5225], [5226], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5326], [5328], [5331], [5339], [5347], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5889], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6420], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6470], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6833], [6834], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-11-12 17:06:35,764 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:06:35,764 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:06:36,735 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 17:06:37,637 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:06:37,639 INFO L272 AbstractInterpreter]: Visited 628 different actions 628 times. Never merged. Never widened. Performed 8056 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8056 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 17:06:37,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:06:37,682 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:06:40,106 INFO L227 lantSequenceWeakener]: Weakened 1166 states. On average, predicates are now at 75.02% of their original sizes. [2018-11-12 17:06:40,106 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:06:40,789 INFO L415 sIntCurrentIteration]: We unified 1186 AI predicates to 1186 [2018-11-12 17:06:40,790 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:06:40,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:06:40,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-12 17:06:40,792 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:06:40,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-12 17:06:40,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-12 17:06:40,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-12 17:06:40,795 INFO L87 Difference]: Start difference. First operand 356275 states and 447295 transitions. Second operand 13 states. Received shutdown request... [2018-11-12 17:06:44,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:06:44,345 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 17:06:44,351 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 17:06:44,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:06:44 BoogieIcfgContainer [2018-11-12 17:06:44,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 17:06:44,353 INFO L168 Benchmark]: Toolchain (without parser) took 218037.59 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -178.5 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-11-12 17:06:44,354 INFO L168 Benchmark]: CDTParser took 0.21 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 17:06:44,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3424.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 394.6 MB). Peak memory consumption was 394.6 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:44,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 566.22 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:44,357 INFO L168 Benchmark]: Boogie Preprocessor took 482.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:44,357 INFO L168 Benchmark]: RCFGBuilder took 14731.83 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 169.9 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 468.6 MB). Peak memory consumption was 679.2 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:44,358 INFO L168 Benchmark]: TraceAbstraction took 198827.07 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 1.8 GB in the beginning and 1.6 GB in the end (delta: 186.0 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-12 17:06:44,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 3424.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 394.6 MB). Peak memory consumption was 394.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 566.22 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 482.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14731.83 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 169.9 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 468.6 MB). Peak memory consumption was 679.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198827.07 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 1.8 GB in the beginning and 1.6 GB in the end (delta: 186.0 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 70). Cancelled while BasicCegarLoop was constructing difference of abstraction (356275states) and FLOYD_HOARE automaton (currently 7 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (50 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 198.7s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 164.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7042 SDtfs, 48601 SDslu, 5448 SDs, 0 SdLazy, 77323 SolverSat, 18868 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 124.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1253 GetRequests, 1197 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356275occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.99913530606305 AbsIntWeakeningRatio, 0.03962900505902192 AbsIntAvgWeakeningVarsNumRemoved, 19.606239460370993 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 19.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 3301 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 3288 NumberOfCodeBlocks, 3288 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3279 ConstructedInterpolants, 0 QuantifiedInterpolants, 3687151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 1382/1483 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown