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_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:22:04,564 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:22:04,566 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:22:04,579 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:22:04,579 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:22:04,580 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:22:04,582 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:22:04,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:22:04,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:22:04,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:22:04,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:22:04,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:22:04,589 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:22:04,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:22:04,591 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:22:04,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:22:04,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:22:04,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:22:04,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:22:04,599 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:22:04,600 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:22:04,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:22:04,604 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:22:04,604 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:22:04,605 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:22:04,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:22:04,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:22:04,608 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:22:04,609 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:22:04,610 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:22:04,610 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:22:04,611 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:22:04,611 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:22:04,611 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:22:04,612 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:22:04,613 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:22:04,614 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 19:22:04,633 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:22:04,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:22:04,634 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:22:04,634 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:22:04,634 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:22:04,635 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:22:04,635 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:22:04,635 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:22:04,635 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:22:04,635 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:22:04,636 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:22:04,636 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:22:04,636 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:22:04,637 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:22:04,637 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:22:04,637 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:22:04,637 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:22:04,638 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:22:04,638 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:22:04,638 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:22:04,638 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:22:04,639 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:22:04,639 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:22:04,639 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:22:04,639 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:22:04,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:22:04,640 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:22:04,640 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:22:04,640 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:22:04,640 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:22:04,641 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:22:04,641 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:22:04,641 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:22:04,641 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:22:04,641 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:22:04,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:22:04,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:22:04,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:22:04,706 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:22:04,706 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:22:04,707 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label34_true-unreach-call.c [2018-11-12 19:22:04,770 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8490d4719/9619d9693ed545f2a1243684a09ce9b9/FLAG66b8dbf9e [2018-11-12 19:22:05,456 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:22:05,457 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label34_true-unreach-call.c [2018-11-12 19:22:05,477 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8490d4719/9619d9693ed545f2a1243684a09ce9b9/FLAG66b8dbf9e [2018-11-12 19:22:05,493 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8490d4719/9619d9693ed545f2a1243684a09ce9b9 [2018-11-12 19:22:05,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:22:05,506 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:22:05,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:22:05,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:22:05,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:22:05,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:22:05" (1/1) ... [2018-11-12 19:22:05,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5742dfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:05, skipping insertion in model container [2018-11-12 19:22:05,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:22:05" (1/1) ... [2018-11-12 19:22:05,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:22:05,617 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:22:06,436 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:22:06,441 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:22:06,709 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:22:06,733 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:22:06,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06 WrapperNode [2018-11-12 19:22:06,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:22:06,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:22:06,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:22:06,736 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:22:06,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:06,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:06,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:22:06,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:22:06,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:22:06,965 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:22:06,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:06,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:06,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:06,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:07,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:07,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:07,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... [2018-11-12 19:22:07,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:22:07,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:22:07,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:22:07,135 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:22:07,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:22:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:22:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:22:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:22:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:22:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:22:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:22:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:22:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:22:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:22:07,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:22:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:22:13,586 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:22:13,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:22:13 BoogieIcfgContainer [2018-11-12 19:22:13,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:22:13,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:22:13,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:22:13,592 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:22:13,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:22:05" (1/3) ... [2018-11-12 19:22:13,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fea4b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:22:13, skipping insertion in model container [2018-11-12 19:22:13,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:06" (2/3) ... [2018-11-12 19:22:13,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fea4b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:22:13, skipping insertion in model container [2018-11-12 19:22:13,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:22:13" (3/3) ... [2018-11-12 19:22:13,596 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label34_true-unreach-call.c [2018-11-12 19:22:13,605 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:22:13,614 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:22:13,629 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:22:13,673 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:22:13,673 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:22:13,674 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:22:13,674 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:22:13,674 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:22:13,674 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:22:13,674 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:22:13,675 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:22:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 19:22:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-12 19:22:13,728 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:13,730 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:13,732 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:13,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1701003787, now seen corresponding path program 1 times [2018-11-12 19:22:13,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:13,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:13,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:13,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:13,789 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:22:14,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:14,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:22:14,230 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:14,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:22:14,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:22:14,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:22:14,257 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 19:22:17,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:17,810 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 19:22:17,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:22:17,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-11-12 19:22:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:17,849 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 19:22:17,849 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 19:22:17,864 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:22:17,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 19:22:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 19:22:17,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 19:22:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-11-12 19:22:18,000 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 41 [2018-11-12 19:22:18,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:18,001 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-11-12 19:22:18,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:22:18,002 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-11-12 19:22:18,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-12 19:22:18,011 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:18,012 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:18,012 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:18,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:18,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1000766724, now seen corresponding path program 1 times [2018-11-12 19:22:18,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:18,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:18,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:18,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:18,015 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:22:18,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:18,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:22:18,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:18,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:22:18,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:22:18,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:22:18,250 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-11-12 19:22:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:23,586 INFO L93 Difference]: Finished difference Result 2194 states and 4083 transitions. [2018-11-12 19:22:23,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:22:23,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-11-12 19:22:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:23,603 INFO L225 Difference]: With dead ends: 2194 [2018-11-12 19:22:23,604 INFO L226 Difference]: Without dead ends: 1456 [2018-11-12 19:22:23,608 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 19:22:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-11-12 19:22:23,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1436. [2018-11-12 19:22:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-11-12 19:22:23,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2550 transitions. [2018-11-12 19:22:23,685 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2550 transitions. Word has length 111 [2018-11-12 19:22:23,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:23,686 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 2550 transitions. [2018-11-12 19:22:23,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:22:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2550 transitions. [2018-11-12 19:22:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-12 19:22:23,694 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:23,694 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:23,695 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:23,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:23,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1676864445, now seen corresponding path program 1 times [2018-11-12 19:22:23,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:23,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:23,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:23,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:23,698 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:22:24,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:24,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:22:24,055 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:24,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:22:24,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:22:24,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:22:24,056 INFO L87 Difference]: Start difference. First operand 1436 states and 2550 transitions. Second operand 6 states. [2018-11-12 19:22:28,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:28,671 INFO L93 Difference]: Finished difference Result 3936 states and 7024 transitions. [2018-11-12 19:22:28,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:22:28,673 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-12 19:22:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:28,695 INFO L225 Difference]: With dead ends: 3936 [2018-11-12 19:22:28,695 INFO L226 Difference]: Without dead ends: 2506 [2018-11-12 19:22:28,704 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:22:28,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2018-11-12 19:22:28,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2479. [2018-11-12 19:22:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-11-12 19:22:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3996 transitions. [2018-11-12 19:22:28,805 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3996 transitions. Word has length 140 [2018-11-12 19:22:28,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:28,805 INFO L480 AbstractCegarLoop]: Abstraction has 2479 states and 3996 transitions. [2018-11-12 19:22:28,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:22:28,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3996 transitions. [2018-11-12 19:22:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-12 19:22:28,813 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:28,815 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:28,815 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:28,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:28,815 INFO L82 PathProgramCache]: Analyzing trace with hash 731010881, now seen corresponding path program 1 times [2018-11-12 19:22:28,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:28,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:28,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:28,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:28,817 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:22:29,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:29,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:22:29,074 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:29,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:22:29,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:22:29,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:22:29,075 INFO L87 Difference]: Start difference. First operand 2479 states and 3996 transitions. Second operand 6 states. [2018-11-12 19:22:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:32,208 INFO L93 Difference]: Finished difference Result 6050 states and 9896 transitions. [2018-11-12 19:22:32,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:22:32,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-11-12 19:22:32,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:32,239 INFO L225 Difference]: With dead ends: 6050 [2018-11-12 19:22:32,239 INFO L226 Difference]: Without dead ends: 3577 [2018-11-12 19:22:32,251 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:22:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2018-11-12 19:22:32,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3545. [2018-11-12 19:22:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2018-11-12 19:22:32,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4965 transitions. [2018-11-12 19:22:32,367 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4965 transitions. Word has length 158 [2018-11-12 19:22:32,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:32,367 INFO L480 AbstractCegarLoop]: Abstraction has 3545 states and 4965 transitions. [2018-11-12 19:22:32,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:22:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4965 transitions. [2018-11-12 19:22:32,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-11-12 19:22:32,372 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:32,373 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:22:32,373 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:32,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:32,373 INFO L82 PathProgramCache]: Analyzing trace with hash 2053720421, now seen corresponding path program 1 times [2018-11-12 19:22:32,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:32,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:32,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:32,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:32,375 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:32,707 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 101 proven. 32 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:22:32,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:22:32,708 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:22:32,709 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-11-12 19:22:32,711 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [407], [409], [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 19:22:32,780 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:22:32,781 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:22:33,632 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:22:33,634 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 19:22:33,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:33,678 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:22:34,781 INFO L227 lantSequenceWeakener]: Weakened 219 states. On average, predicates are now at 77.86% of their original sizes. [2018-11-12 19:22:34,781 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:22:35,776 INFO L415 sIntCurrentIteration]: We unified 240 AI predicates to 240 [2018-11-12 19:22:35,776 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:22:35,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:22:35,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-12 19:22:35,777 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:35,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 19:22:35,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 19:22:35,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:22:35,779 INFO L87 Difference]: Start difference. First operand 3545 states and 4965 transitions. Second operand 11 states. [2018-11-12 19:22:42,023 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:23:03,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:23:03,332 INFO L93 Difference]: Finished difference Result 7427 states and 10353 transitions. [2018-11-12 19:23:03,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 19:23:03,332 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2018-11-12 19:23:03,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:23:03,351 INFO L225 Difference]: With dead ends: 7427 [2018-11-12 19:23:03,352 INFO L226 Difference]: Without dead ends: 3888 [2018-11-12 19:23:03,366 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 245 GetRequests, 195 SyntacticMatches, 36 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 19:23:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2018-11-12 19:23:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3883. [2018-11-12 19:23:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3883 states. [2018-11-12 19:23:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 5311 transitions. [2018-11-12 19:23:03,467 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 5311 transitions. Word has length 241 [2018-11-12 19:23:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:23:03,467 INFO L480 AbstractCegarLoop]: Abstraction has 3883 states and 5311 transitions. [2018-11-12 19:23:03,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 19:23:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 5311 transitions. [2018-11-12 19:23:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-11-12 19:23:03,475 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:23:03,475 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 19:23:03,476 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:23:03,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:03,476 INFO L82 PathProgramCache]: Analyzing trace with hash -822869790, now seen corresponding path program 1 times [2018-11-12 19:23:03,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:23:03,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:03,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:23:03,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:03,478 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:23:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:23:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 174 proven. 115 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-12 19:23:03,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:23:03,884 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:23:03,884 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 334 with the following transitions: [2018-11-12 19:23:03,885 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [407], [409], [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 19:23:03,891 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:23:03,891 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:23:03,963 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:23:04,609 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:23:04,610 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 5835 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5835 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:23:04,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:04,634 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:23:05,466 INFO L227 lantSequenceWeakener]: Weakened 89 states. On average, predicates are now at 77.94% of their original sizes. [2018-11-12 19:23:05,467 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:23:07,935 INFO L415 sIntCurrentIteration]: We unified 332 AI predicates to 332 [2018-11-12 19:23:07,935 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:23:07,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:23:07,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [7] total 23 [2018-11-12 19:23:07,936 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:23:07,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:23:07,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:23:07,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:23:07,943 INFO L87 Difference]: Start difference. First operand 3883 states and 5311 transitions. Second operand 18 states. [2018-11-12 19:23:51,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:23:51,872 INFO L93 Difference]: Finished difference Result 8610 states and 11687 transitions. [2018-11-12 19:23:51,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-12 19:23:51,873 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 333 [2018-11-12 19:23:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:23:51,898 INFO L225 Difference]: With dead ends: 8610 [2018-11-12 19:23:51,898 INFO L226 Difference]: Without dead ends: 5071 [2018-11-12 19:23:51,911 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 342 GetRequests, 301 SyntacticMatches, 15 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2018-11-12 19:23:51,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2018-11-12 19:23:52,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 4839. [2018-11-12 19:23:52,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4839 states. [2018-11-12 19:23:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4839 states to 4839 states and 6322 transitions. [2018-11-12 19:23:52,031 INFO L78 Accepts]: Start accepts. Automaton has 4839 states and 6322 transitions. Word has length 333 [2018-11-12 19:23:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:23:52,032 INFO L480 AbstractCegarLoop]: Abstraction has 4839 states and 6322 transitions. [2018-11-12 19:23:52,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:23:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4839 states and 6322 transitions. [2018-11-12 19:23:52,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2018-11-12 19:23:52,041 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:23:52,042 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 19:23:52,042 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:23:52,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:52,042 INFO L82 PathProgramCache]: Analyzing trace with hash -643178646, now seen corresponding path program 1 times [2018-11-12 19:23:52,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:23:52,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:52,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:23:52,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:52,044 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:23:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:23:52,374 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-12 19:23:52,874 WARN L179 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 19:23:53,328 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-12 19:23:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 233 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-12 19:23:54,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:23:54,016 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:23:54,016 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 370 with the following transitions: [2018-11-12 19:23:54,016 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [407], [409], [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 19:23:54,020 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:23:54,021 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:23:54,109 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:23:54,503 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:23:54,503 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 6152 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6152 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:23:54,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:54,529 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:23:55,032 INFO L227 lantSequenceWeakener]: Weakened 89 states. On average, predicates are now at 77.94% of their original sizes. [2018-11-12 19:23:55,032 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:23:55,887 INFO L415 sIntCurrentIteration]: We unified 368 AI predicates to 368 [2018-11-12 19:23:55,888 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:23:55,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:23:55,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [13] total 29 [2018-11-12 19:23:55,888 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:23:55,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:23:55,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:23:55,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:23:55,891 INFO L87 Difference]: Start difference. First operand 4839 states and 6322 transitions. Second operand 18 states. [2018-11-12 19:24:43,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:43,682 INFO L93 Difference]: Finished difference Result 9647 states and 12829 transitions. [2018-11-12 19:24:43,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-12 19:24:43,682 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 369 [2018-11-12 19:24:43,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:43,705 INFO L225 Difference]: With dead ends: 9647 [2018-11-12 19:24:43,705 INFO L226 Difference]: Without dead ends: 5756 [2018-11-12 19:24:43,720 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 378 GetRequests, 337 SyntacticMatches, 15 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2018-11-12 19:24:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2018-11-12 19:24:43,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5518. [2018-11-12 19:24:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5518 states. [2018-11-12 19:24:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5518 states to 5518 states and 7072 transitions. [2018-11-12 19:24:43,861 INFO L78 Accepts]: Start accepts. Automaton has 5518 states and 7072 transitions. Word has length 369 [2018-11-12 19:24:43,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:43,861 INFO L480 AbstractCegarLoop]: Abstraction has 5518 states and 7072 transitions. [2018-11-12 19:24:43,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:24:43,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5518 states and 7072 transitions. [2018-11-12 19:24:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-11-12 19:24:43,879 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:43,879 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 19:24:43,880 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:43,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:43,880 INFO L82 PathProgramCache]: Analyzing trace with hash 201865034, now seen corresponding path program 1 times [2018-11-12 19:24:43,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:43,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:43,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:43,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:43,882 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 208 proven. 32 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 19:24:44,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:44,455 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:24:44,456 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-11-12 19:24:44,456 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [407], [409], [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 19:24:44,462 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:24:44,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:24:45,054 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:24:45,055 INFO L272 AbstractInterpreter]: Visited 249 different actions 494 times. Merged at 5 different actions 7 times. Never widened. Performed 7436 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7436 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:24:45,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:45,091 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:24:45,749 INFO L227 lantSequenceWeakener]: Weakened 109 states. On average, predicates are now at 78.68% of their original sizes. [2018-11-12 19:24:45,750 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:24:48,139 INFO L415 sIntCurrentIteration]: We unified 480 AI predicates to 480 [2018-11-12 19:24:48,140 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:24:48,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:24:48,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [5] total 24 [2018-11-12 19:24:48,141 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:24:48,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 19:24:48,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 19:24:48,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:24:48,143 INFO L87 Difference]: Start difference. First operand 5518 states and 7072 transitions. Second operand 21 states. [2018-11-12 19:24:50,551 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:25:16,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:25:16,567 INFO L93 Difference]: Finished difference Result 10406 states and 13676 transitions. [2018-11-12 19:25:16,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 19:25:16,568 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 481 [2018-11-12 19:25:16,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:25:16,591 INFO L225 Difference]: With dead ends: 10406 [2018-11-12 19:25:16,591 INFO L226 Difference]: Without dead ends: 6154 [2018-11-12 19:25:16,608 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 494 GetRequests, 392 SyntacticMatches, 69 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=225, Invalid=965, Unknown=0, NotChecked=0, Total=1190 [2018-11-12 19:25:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2018-11-12 19:25:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 6149. [2018-11-12 19:25:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6149 states. [2018-11-12 19:25:16,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6149 states to 6149 states and 7741 transitions. [2018-11-12 19:25:16,748 INFO L78 Accepts]: Start accepts. Automaton has 6149 states and 7741 transitions. Word has length 481 [2018-11-12 19:25:16,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:25:16,749 INFO L480 AbstractCegarLoop]: Abstraction has 6149 states and 7741 transitions. [2018-11-12 19:25:16,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-12 19:25:16,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6149 states and 7741 transitions. [2018-11-12 19:25:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2018-11-12 19:25:16,764 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:25:16,765 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 19:25:16,765 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:25:16,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:16,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1699246118, now seen corresponding path program 1 times [2018-11-12 19:25:16,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:25:16,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:16,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:25:16,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:16,767 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:25:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:25:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 208 proven. 32 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 19:25:17,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:25:17,315 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:25:17,316 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 490 with the following transitions: [2018-11-12 19:25:17,316 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [407], [409], [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 19:25:17,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:25:17,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:25:20,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:25:20,086 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 38800 root evaluator evaluations with a maximum evaluation depth of 6. Performed 38800 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:25:20,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:20,093 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:25:20,708 INFO L227 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 78.38% of their original sizes. [2018-11-12 19:25:20,708 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:25:21,093 INFO L415 sIntCurrentIteration]: We unified 488 AI predicates to 488 [2018-11-12 19:25:21,093 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:25:21,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:25:21,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [5] total 27 [2018-11-12 19:25:21,094 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:25:21,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 19:25:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 19:25:21,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-11-12 19:25:21,095 INFO L87 Difference]: Start difference. First operand 6149 states and 7741 transitions. Second operand 24 states. [2018-11-12 19:25:23,287 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:25:47,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-12 19:25:47,509 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:25:47,515 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:25:47,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:25:47 BoogieIcfgContainer [2018-11-12 19:25:47,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:25:47,516 INFO L168 Benchmark]: Toolchain (without parser) took 222010.74 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -643.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-12 19:25:47,517 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 19:25:47,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1227.30 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 19:25:47,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 229.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2018-11-12 19:25:47,520 INFO L168 Benchmark]: Boogie Preprocessor took 169.69 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:25:47,520 INFO L168 Benchmark]: RCFGBuilder took 6452.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 270.8 MB). Peak memory consumption was 270.8 MB. Max. memory is 7.1 GB. [2018-11-12 19:25:47,521 INFO L168 Benchmark]: TraceAbstraction took 213927.20 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -102.0 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-12 19:25:47,526 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 1227.30 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 229.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.69 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6452.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 270.8 MB). Peak memory consumption was 270.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213927.20 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -102.0 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 109). Cancelled while BasicCegarLoop was constructing difference of abstraction (6149states) and FLOYD_HOARE automaton (currently 33 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (8560 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 213.8s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 191.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2301 SDtfs, 20307 SDslu, 1969 SDs, 0 SdLazy, 33202 SolverSat, 3204 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.7s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1995 GetRequests, 1699 SyntacticMatches, 140 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6149occurred 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, 0.9976011383415002 AbsIntWeakeningRatio, 0.08071278825995808 AbsIntAvgWeakeningVarsNumRemoved, 10.4979035639413 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 559 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2363 NumberOfCodeBlocks, 2363 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2354 ConstructedInterpolants, 0 QuantifiedInterpolants, 3233049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1408/1688 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown