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/Problem16_label14_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:41:10,558 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:41:10,560 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:41:10,573 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:41:10,573 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:41:10,574 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:41:10,576 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:41:10,578 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:41:10,579 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:41:10,580 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:41:10,581 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:41:10,581 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:41:10,582 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:41:10,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:41:10,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:41:10,585 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:41:10,586 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:41:10,588 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:41:10,590 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:41:10,591 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:41:10,595 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:41:10,596 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:41:10,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:41:10,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:41:10,602 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:41:10,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:41:10,609 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:41:10,609 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:41:10,611 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:41:10,612 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:41:10,612 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:41:10,613 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:41:10,613 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:41:10,613 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:41:10,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:41:10,616 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:41:10,616 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 16:41:10,631 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:41:10,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:41:10,632 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:41:10,632 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:41:10,632 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:41:10,633 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:41:10,633 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:41:10,633 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:41:10,633 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:41:10,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:41:10,634 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:41:10,634 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:41:10,634 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:41:10,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:41:10,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:41:10,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:41:10,635 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:41:10,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:41:10,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:41:10,636 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:41:10,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:41:10,636 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:41:10,637 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:41:10,637 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:41:10,637 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:41:10,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:41:10,637 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:41:10,638 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:41:10,638 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:41:10,638 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:41:10,638 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:41:10,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:41:10,638 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:41:10,639 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:41:10,639 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:41:10,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:41:10,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:41:10,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:41:10,718 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:41:10,718 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:41:10,719 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label14_false-unreach-call.c [2018-11-12 16:41:10,769 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f07cf7f14/4e651a1d4755464797d7f8dd63b54f39/FLAGc347a3f85 [2018-11-12 16:41:11,456 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:41:11,457 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label14_false-unreach-call.c [2018-11-12 16:41:11,484 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f07cf7f14/4e651a1d4755464797d7f8dd63b54f39/FLAGc347a3f85 [2018-11-12 16:41:11,507 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f07cf7f14/4e651a1d4755464797d7f8dd63b54f39 [2018-11-12 16:41:11,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:41:11,522 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:41:11,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:41:11,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:41:11,530 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:41:11,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:41:11" (1/1) ... [2018-11-12 16:41:11,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2d05b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:11, skipping insertion in model container [2018-11-12 16:41:11,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:41:11" (1/1) ... [2018-11-12 16:41:11,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:41:11,645 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:41:12,463 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:41:12,473 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:41:12,722 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:41:12,745 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:41:12,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12 WrapperNode [2018-11-12 16:41:12,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:41:12,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:41:12,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:41:12,748 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:41:12,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:12,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:12,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:41:12,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:41:12,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:41:12,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:41:12,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:12,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:12,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:12,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:13,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:13,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:13,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (1/1) ... [2018-11-12 16:41:13,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:41:13,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:41:13,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:41:13,107 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:41:13,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (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 16:41:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:41:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:41:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:41:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:41:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:41:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:41:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:41:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:41:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:41:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:41:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:41:18,848 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:41:18,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:41:18 BoogieIcfgContainer [2018-11-12 16:41:18,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:41:18,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:41:18,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:41:18,856 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:41:18,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:41:11" (1/3) ... [2018-11-12 16:41:18,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d66dff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:41:18, skipping insertion in model container [2018-11-12 16:41:18,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:12" (2/3) ... [2018-11-12 16:41:18,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d66dff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:41:18, skipping insertion in model container [2018-11-12 16:41:18,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:41:18" (3/3) ... [2018-11-12 16:41:18,861 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label14_false-unreach-call.c [2018-11-12 16:41:18,870 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:41:18,879 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:41:18,897 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:41:18,940 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:41:18,940 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:41:18,940 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:41:18,940 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:41:18,940 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:41:18,941 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:41:18,941 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:41:18,941 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:41:18,978 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 16:41:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-12 16:41:18,986 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:18,987 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 16:41:18,990 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:18,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:18,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1095563467, now seen corresponding path program 1 times [2018-11-12 16:41:18,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:19,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:19,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:19,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:19,053 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:19,443 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:41:19,554 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 16:41:19,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:19,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:41:19,557 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:19,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:41:19,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:41:19,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:41:19,586 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 16:41:23,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:23,251 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 16:41:23,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:41:23,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-12 16:41:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:23,278 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 16:41:23,278 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 16:41:23,292 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 16:41:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 16:41:23,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 16:41:23,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 16:41:23,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-11-12 16:41:23,414 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 25 [2018-11-12 16:41:23,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:23,415 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-11-12 16:41:23,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:41:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-11-12 16:41:23,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-11-12 16:41:23,421 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:23,422 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] [2018-11-12 16:41:23,422 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:23,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:23,423 INFO L82 PathProgramCache]: Analyzing trace with hash -826057540, now seen corresponding path program 1 times [2018-11-12 16:41:23,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:23,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:23,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:23,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:23,425 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:23,734 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 16:41:23,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:23,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:41:23,734 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:23,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:41:23,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:41:23,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:41:23,738 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-11-12 16:41:29,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:29,251 INFO L93 Difference]: Finished difference Result 2194 states and 4083 transitions. [2018-11-12 16:41:29,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:41:29,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2018-11-12 16:41:29,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:29,264 INFO L225 Difference]: With dead ends: 2194 [2018-11-12 16:41:29,265 INFO L226 Difference]: Without dead ends: 1456 [2018-11-12 16:41:29,269 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:41:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-11-12 16:41:29,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1436. [2018-11-12 16:41:29,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-11-12 16:41:29,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2550 transitions. [2018-11-12 16:41:29,352 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2550 transitions. Word has length 95 [2018-11-12 16:41:29,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:29,353 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 2550 transitions. [2018-11-12 16:41:29,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:41:29,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2550 transitions. [2018-11-12 16:41:29,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-12 16:41:29,357 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:29,358 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] [2018-11-12 16:41:29,358 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:29,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:29,358 INFO L82 PathProgramCache]: Analyzing trace with hash -298596995, now seen corresponding path program 1 times [2018-11-12 16:41:29,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:29,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:29,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:29,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:29,360 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:29,714 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:41:30,099 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 16:41:30,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:30,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:41:30,100 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:30,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:41:30,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:41:30,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:41:30,102 INFO L87 Difference]: Start difference. First operand 1436 states and 2550 transitions. Second operand 6 states. [2018-11-12 16:41:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:35,037 INFO L93 Difference]: Finished difference Result 3936 states and 7024 transitions. [2018-11-12 16:41:35,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:41:35,039 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-12 16:41:35,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:35,062 INFO L225 Difference]: With dead ends: 3936 [2018-11-12 16:41:35,062 INFO L226 Difference]: Without dead ends: 2506 [2018-11-12 16:41:35,072 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:41:35,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2018-11-12 16:41:35,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2479. [2018-11-12 16:41:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-11-12 16:41:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3996 transitions. [2018-11-12 16:41:35,162 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3996 transitions. Word has length 124 [2018-11-12 16:41:35,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:35,163 INFO L480 AbstractCegarLoop]: Abstraction has 2479 states and 3996 transitions. [2018-11-12 16:41:35,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:41:35,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3996 transitions. [2018-11-12 16:41:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-12 16:41:35,167 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:35,167 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] [2018-11-12 16:41:35,168 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:35,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:35,168 INFO L82 PathProgramCache]: Analyzing trace with hash 113309953, now seen corresponding path program 1 times [2018-11-12 16:41:35,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:35,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:35,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:35,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:35,170 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:35,451 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 16:41:35,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:35,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:41:35,452 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:35,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:41:35,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:41:35,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:41:35,454 INFO L87 Difference]: Start difference. First operand 2479 states and 3996 transitions. Second operand 6 states. [2018-11-12 16:41:38,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:38,381 INFO L93 Difference]: Finished difference Result 6050 states and 9896 transitions. [2018-11-12 16:41:38,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:41:38,381 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-11-12 16:41:38,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:38,406 INFO L225 Difference]: With dead ends: 6050 [2018-11-12 16:41:38,406 INFO L226 Difference]: Without dead ends: 3577 [2018-11-12 16:41:38,417 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 16:41:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2018-11-12 16:41:38,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3545. [2018-11-12 16:41:38,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2018-11-12 16:41:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4965 transitions. [2018-11-12 16:41:38,512 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4965 transitions. Word has length 142 [2018-11-12 16:41:38,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:38,513 INFO L480 AbstractCegarLoop]: Abstraction has 3545 states and 4965 transitions. [2018-11-12 16:41:38,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:41:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4965 transitions. [2018-11-12 16:41:38,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-12 16:41:38,517 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:38,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:38,518 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:38,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:38,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1758923227, now seen corresponding path program 1 times [2018-11-12 16:41:38,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:38,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:38,519 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 85 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:41:38,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:41:38,741 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:41:38,742 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-12 16:41:38,745 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [279], [281], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:41:38,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:41:38,802 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:41:39,729 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:41:39,731 INFO L272 AbstractInterpreter]: Visited 135 different actions 135 times. Never merged. Never widened. Performed 2352 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2352 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 16:41:39,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:39,773 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:41:40,746 INFO L227 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 77.55% of their original sizes. [2018-11-12 16:41:40,746 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:41:42,345 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-12 16:41:42,345 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:41:42,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:41:42,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-12 16:41:42,347 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:42,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 16:41:42,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 16:41:42,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 16:41:42,349 INFO L87 Difference]: Start difference. First operand 3545 states and 4965 transitions. Second operand 11 states. [2018-11-12 16:41:49,001 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:42:10,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:42:10,688 INFO L93 Difference]: Finished difference Result 7427 states and 10353 transitions. [2018-11-12 16:42:10,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 16:42:10,688 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 225 [2018-11-12 16:42:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:42:10,706 INFO L225 Difference]: With dead ends: 7427 [2018-11-12 16:42:10,706 INFO L226 Difference]: Without dead ends: 3888 [2018-11-12 16:42:10,719 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 179 SyntacticMatches, 36 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 16:42:10,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2018-11-12 16:42:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3883. [2018-11-12 16:42:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3883 states. [2018-11-12 16:42:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 5311 transitions. [2018-11-12 16:42:10,816 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 5311 transitions. Word has length 225 [2018-11-12 16:42:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:42:10,816 INFO L480 AbstractCegarLoop]: Abstraction has 3883 states and 5311 transitions. [2018-11-12 16:42:10,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 16:42:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 5311 transitions. [2018-11-12 16:42:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-11-12 16:42:10,823 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:42:10,823 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-12 16:42:10,824 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:42:10,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:42:10,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1713198942, now seen corresponding path program 1 times [2018-11-12 16:42:10,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:42:10,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:42:10,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:42:10,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:42:10,826 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:42:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:42:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 126 proven. 115 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-12 16:42:11,619 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:42:11,619 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:42:11,619 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 318 with the following transitions: [2018-11-12 16:42:11,620 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [279], [281], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:42:11,626 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:42:11,626 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:42:11,686 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:42:12,290 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:42:12,290 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 5831 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5831 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 16:42:12,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:42:12,317 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:42:13,041 INFO L227 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 78% of their original sizes. [2018-11-12 16:42:13,042 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:42:15,645 INFO L415 sIntCurrentIteration]: We unified 316 AI predicates to 316 [2018-11-12 16:42:15,646 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:42:15,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:42:15,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [7] total 28 [2018-11-12 16:42:15,646 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:42:15,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:42:15,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:42:15,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:42:15,649 INFO L87 Difference]: Start difference. First operand 3883 states and 5311 transitions. Second operand 23 states. [2018-11-12 16:43:04,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:43:04,191 INFO L93 Difference]: Finished difference Result 9492 states and 12812 transitions. [2018-11-12 16:43:04,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-12 16:43:04,191 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 317 [2018-11-12 16:43:04,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:43:04,221 INFO L225 Difference]: With dead ends: 9492 [2018-11-12 16:43:04,222 INFO L226 Difference]: Without dead ends: 5953 [2018-11-12 16:43:04,237 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 336 GetRequests, 280 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2018-11-12 16:43:04,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2018-11-12 16:43:04,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 5485. [2018-11-12 16:43:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5485 states. [2018-11-12 16:43:04,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5485 states to 5485 states and 6987 transitions. [2018-11-12 16:43:04,380 INFO L78 Accepts]: Start accepts. Automaton has 5485 states and 6987 transitions. Word has length 317 [2018-11-12 16:43:04,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:43:04,380 INFO L480 AbstractCegarLoop]: Abstraction has 5485 states and 6987 transitions. [2018-11-12 16:43:04,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 16:43:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5485 states and 6987 transitions. [2018-11-12 16:43:04,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-11-12 16:43:04,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:43:04,390 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:43:04,390 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:43:04,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:04,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1541794006, now seen corresponding path program 1 times [2018-11-12 16:43:04,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:43:04,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:04,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:43:04,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:04,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:43:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:43:04,740 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-12 16:43:05,214 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 16:43:05,689 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-12 16:43:06,049 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-11-12 16:43:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 185 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-12 16:43:07,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:43:07,162 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:43:07,162 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 354 with the following transitions: [2018-11-12 16:43:07,163 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [279], [281], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:43:07,167 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:43:07,167 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:43:07,311 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:43:07,704 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:43:07,705 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 7275 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7275 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 16:43:07,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:07,729 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:43:08,209 INFO L227 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 78% of their original sizes. [2018-11-12 16:43:08,209 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:43:08,757 INFO L415 sIntCurrentIteration]: We unified 352 AI predicates to 352 [2018-11-12 16:43:08,757 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:43:08,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:43:08,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [13] total 35 [2018-11-12 16:43:08,758 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:43:08,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 16:43:08,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 16:43:08,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2018-11-12 16:43:08,759 INFO L87 Difference]: Start difference. First operand 5485 states and 6987 transitions. Second operand 24 states. [2018-11-12 16:43:55,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:43:55,768 INFO L93 Difference]: Finished difference Result 12309 states and 15800 transitions. [2018-11-12 16:43:55,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-12 16:43:55,769 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 353 [2018-11-12 16:43:55,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:43:55,808 INFO L225 Difference]: With dead ends: 12309 [2018-11-12 16:43:55,808 INFO L226 Difference]: Without dead ends: 8035 [2018-11-12 16:43:55,831 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 372 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=1548, Unknown=0, NotChecked=0, Total=1892 [2018-11-12 16:43:55,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8035 states. [2018-11-12 16:43:56,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 7099. [2018-11-12 16:43:56,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7099 states. [2018-11-12 16:43:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7099 states to 7099 states and 8698 transitions. [2018-11-12 16:43:56,031 INFO L78 Accepts]: Start accepts. Automaton has 7099 states and 8698 transitions. Word has length 353 [2018-11-12 16:43:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:43:56,031 INFO L480 AbstractCegarLoop]: Abstraction has 7099 states and 8698 transitions. [2018-11-12 16:43:56,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-12 16:43:56,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7099 states and 8698 transitions. [2018-11-12 16:43:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-11-12 16:43:56,049 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:43:56,049 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:43:56,050 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:43:56,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:56,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1303785226, now seen corresponding path program 1 times [2018-11-12 16:43:56,050 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:43:56,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:56,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:43:56,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:56,052 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:43:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:43:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 176 proven. 16 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 16:43:56,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:43:56,601 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:43:56,602 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 466 with the following transitions: [2018-11-12 16:43:56,603 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [279], [281], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:43:56,609 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:43:56,609 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:43:57,136 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:43:57,136 INFO L272 AbstractInterpreter]: Visited 249 different actions 492 times. Merged at 5 different actions 5 times. Never widened. Performed 6341 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6341 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 16:43:57,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:57,173 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:43:57,928 INFO L227 lantSequenceWeakener]: Weakened 93 states. On average, predicates are now at 78.14% of their original sizes. [2018-11-12 16:43:57,929 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:43:58,529 INFO L415 sIntCurrentIteration]: We unified 464 AI predicates to 464 [2018-11-12 16:43:58,529 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:43:58,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:43:58,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [5] total 25 [2018-11-12 16:43:58,530 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:43:58,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-12 16:43:58,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-12 16:43:58,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-11-12 16:43:58,532 INFO L87 Difference]: Start difference. First operand 7099 states and 8698 transitions. Second operand 22 states. [2018-11-12 16:44:00,558 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:44:29,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:44:29,462 INFO L93 Difference]: Finished difference Result 12754 states and 16092 transitions. [2018-11-12 16:44:29,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-12 16:44:29,462 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 465 [2018-11-12 16:44:29,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:44:29,481 INFO L225 Difference]: With dead ends: 12754 [2018-11-12 16:44:29,481 INFO L226 Difference]: Without dead ends: 7735 [2018-11-12 16:44:29,497 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 479 GetRequests, 431 SyntacticMatches, 13 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2018-11-12 16:44:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2018-11-12 16:44:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 7730. [2018-11-12 16:44:29,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7730 states. [2018-11-12 16:44:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 9367 transitions. [2018-11-12 16:44:29,652 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 9367 transitions. Word has length 465 [2018-11-12 16:44:29,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:44:29,653 INFO L480 AbstractCegarLoop]: Abstraction has 7730 states and 9367 transitions. [2018-11-12 16:44:29,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-12 16:44:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 9367 transitions. [2018-11-12 16:44:29,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2018-11-12 16:44:29,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:29,672 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:44:29,672 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:29,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1666688922, now seen corresponding path program 1 times [2018-11-12 16:44:29,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:29,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:29,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:29,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:29,674 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 176 proven. 16 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 16:44:30,199 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:44:30,200 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:44:30,200 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 474 with the following transitions: [2018-11-12 16:44:30,200 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [279], [281], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:44:30,205 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:44:30,205 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:44:33,008 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:44:33,008 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 40148 root evaluator evaluations with a maximum evaluation depth of 6. Performed 40148 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 16:44:33,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:33,015 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:44:33,632 INFO L227 lantSequenceWeakener]: Weakened 120 states. On average, predicates are now at 77.92% of their original sizes. [2018-11-12 16:44:33,632 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:44:34,258 INFO L415 sIntCurrentIteration]: We unified 472 AI predicates to 472 [2018-11-12 16:44:34,259 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:44:34,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:44:34,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [5] total 27 [2018-11-12 16:44:34,259 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:44:34,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 16:44:34,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 16:44:34,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-11-12 16:44:34,261 INFO L87 Difference]: Start difference. First operand 7730 states and 9367 transitions. Second operand 24 states. [2018-11-12 16:44:36,345 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 16:44:54,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-12 16:44:54,897 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:44:54,903 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:44:54,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:44:54 BoogieIcfgContainer [2018-11-12 16:44:54,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:44:54,904 INFO L168 Benchmark]: Toolchain (without parser) took 223383.41 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 861.1 MB in the end (delta: 532.8 MB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2018-11-12 16:44:54,906 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:44:54,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1223.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 16:44:54,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 181.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -859.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-12 16:44:54,908 INFO L168 Benchmark]: Boogie Preprocessor took 176.65 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:44:54,908 INFO L168 Benchmark]: RCFGBuilder took 5743.58 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 270.8 MB). Peak memory consumption was 270.8 MB. Max. memory is 7.1 GB. [2018-11-12 16:44:54,909 INFO L168 Benchmark]: TraceAbstraction took 216052.77 ms. Allocated memory was 2.2 GB in the beginning and 4.4 GB in the end (delta: 2.2 GB). Free memory was 1.9 GB in the beginning and 861.1 MB in the end (delta: 1.0 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-11-12 16:44:54,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1223.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 181.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -859.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.65 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5743.58 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 270.8 MB). Peak memory consumption was 270.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216052.77 ms. Allocated memory was 2.2 GB in the beginning and 4.4 GB in the end (delta: 2.2 GB). Free memory was 1.9 GB in the beginning and 861.1 MB in the end (delta: 1.0 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 61). Cancelled while BasicCegarLoop was constructing difference of abstraction (7730states) and FLOYD_HOARE automaton (currently 33 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (11271 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 215.9s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 192.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2335 SDtfs, 26847 SDslu, 2193 SDs, 0 SdLazy, 31900 SolverSat, 3508 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1936 GetRequests, 1678 SyntacticMatches, 69 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2026 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7730occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.6s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9974961553367517 AbsIntWeakeningRatio, 0.08424507658643327 AbsIntAvgWeakeningVarsNumRemoved, 10.474288840262583 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 1493 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 2219 NumberOfCodeBlocks, 2219 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2210 ConstructedInterpolants, 0 QuantifiedInterpolants, 2985945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1184/1416 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown