java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label21_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:22:58,496 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:22:58,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:22:58,516 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:22:58,516 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:22:58,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:22:58,519 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:22:58,522 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:22:58,524 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:22:58,524 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:22:58,525 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:22:58,526 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:22:58,527 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:22:58,528 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:22:58,529 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:22:58,530 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:22:58,531 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:22:58,532 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:22:58,534 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:22:58,536 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:22:58,537 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:22:58,538 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:22:58,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:22:58,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:22:58,553 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:22:58,554 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:22:58,554 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:22:58,555 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:22:58,572 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:22:58,572 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:22:58,573 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:22:58,573 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:22:58,574 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:22:58,574 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:22:58,574 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:22:58,574 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:22:58,574 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:22:58,575 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:22:58,575 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:22:58,575 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:22:58,576 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:22:58,576 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:22:58,576 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:22:58,576 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:22:58,577 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:22:58,577 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:22:58,577 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:22:58,577 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:22:58,577 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:22:58,578 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:22:58,578 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:22:58,578 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:22:58,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:22:58,578 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:22:58,579 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:22:58,579 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:22:58,579 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:22:58,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:22:58,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:22:58,580 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:22:58,580 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:22:58,580 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:22:58,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:22:58,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:22:58,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:22:58,649 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:22:58,649 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:22:58,650 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label21_false-unreach-call.c [2018-10-24 18:22:58,718 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/69a6d8c82/bc8a6b8ed6014e6cb1e285ebbae399b3/FLAGcb08c5c09 [2018-10-24 18:22:59,631 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:22:59,632 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label21_false-unreach-call.c [2018-10-24 18:22:59,673 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/69a6d8c82/bc8a6b8ed6014e6cb1e285ebbae399b3/FLAGcb08c5c09 [2018-10-24 18:22:59,694 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/69a6d8c82/bc8a6b8ed6014e6cb1e285ebbae399b3 [2018-10-24 18:22:59,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:22:59,710 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:22:59,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:22:59,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:22:59,716 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:22:59,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:22:59" (1/1) ... [2018-10-24 18:22:59,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43083d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:22:59, skipping insertion in model container [2018-10-24 18:22:59,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:22:59" (1/1) ... [2018-10-24 18:22:59,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:22:59,925 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:23:01,440 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:23:01,448 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:23:02,173 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:23:02,209 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:23:02,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02 WrapperNode [2018-10-24 18:23:02,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:23:02,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:23:02,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:23:02,212 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:23:02,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:02,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:02,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:23:02,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:23:02,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:23:02,840 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:23:02,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:02,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:02,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:02,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:03,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:03,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:03,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... [2018-10-24 18:23:03,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:23:03,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:23:03,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:23:03,211 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:23:03,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:23:03,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:23:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:23:03,279 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 18:23:03,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 18:23:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 18:23:03,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 18:23:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:23:03,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:23:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:23:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:23:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:23:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:23:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:23:03,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:23:14,583 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:23:14,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:23:14 BoogieIcfgContainer [2018-10-24 18:23:14,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:23:14,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:23:14,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:23:14,589 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:23:14,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:22:59" (1/3) ... [2018-10-24 18:23:14,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4c2d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:23:14, skipping insertion in model container [2018-10-24 18:23:14,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:23:02" (2/3) ... [2018-10-24 18:23:14,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4c2d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:23:14, skipping insertion in model container [2018-10-24 18:23:14,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:23:14" (3/3) ... [2018-10-24 18:23:14,592 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label21_false-unreach-call.c [2018-10-24 18:23:14,603 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:23:14,613 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:23:14,631 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:23:14,683 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:23:14,683 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:23:14,684 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:23:14,684 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:23:14,684 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:23:14,684 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:23:14,684 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:23:14,684 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:23:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 18:23:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-24 18:23:14,750 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:23:14,750 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] [2018-10-24 18:23:14,753 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:23:14,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:23:14,758 INFO L82 PathProgramCache]: Analyzing trace with hash -657257213, now seen corresponding path program 1 times [2018-10-24 18:23:14,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:23:14,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:23:14,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:23:14,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:23:14,814 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:23:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:23:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:23:15,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:23:15,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:23:15,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:23:15,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:23:15,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:23:15,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:23:15,211 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-24 18:23:30,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:23:30,903 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-24 18:23:30,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:23:30,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-10-24 18:23:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:23:30,967 INFO L225 Difference]: With dead ends: 4063 [2018-10-24 18:23:30,968 INFO L226 Difference]: Without dead ends: 2937 [2018-10-24 18:23:30,986 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:23:31,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-24 18:23:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-24 18:23:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-24 18:23:31,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-24 18:23:31,186 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 27 [2018-10-24 18:23:31,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:23:31,187 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-24 18:23:31,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:23:31,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-24 18:23:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-10-24 18:23:31,193 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:23:31,193 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:23:31,194 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:23:31,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:23:31,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1730272033, now seen corresponding path program 1 times [2018-10-24 18:23:31,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:23:31,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:23:31,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:23:31,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:23:31,196 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:23:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:23:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:23:31,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:23:31,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:23:31,681 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:23:31,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:23:31,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:23:31,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:23:31,684 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-24 18:23:48,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:23:48,950 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-24 18:23:48,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:23:48,955 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-10-24 18:23:48,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:23:48,991 INFO L225 Difference]: With dead ends: 7277 [2018-10-24 18:23:48,992 INFO L226 Difference]: Without dead ends: 5301 [2018-10-24 18:23:49,003 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:23:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-24 18:23:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-24 18:23:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-24 18:23:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-24 18:23:49,191 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 98 [2018-10-24 18:23:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:23:49,192 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-24 18:23:49,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:23:49,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-24 18:23:49,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 18:23:49,199 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:23:49,199 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:23:49,200 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:23:49,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:23:49,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1080221806, now seen corresponding path program 1 times [2018-10-24 18:23:49,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:23:49,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:23:49,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:23:49,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:23:49,203 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:23:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:23:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:23:49,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:23:49,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:23:49,462 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:23:49,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:23:49,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:23:49,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:23:49,464 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-24 18:24:03,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:24:03,845 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-24 18:24:03,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:24:03,848 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-24 18:24:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:24:03,894 INFO L225 Difference]: With dead ends: 13914 [2018-10-24 18:24:03,894 INFO L226 Difference]: Without dead ends: 8668 [2018-10-24 18:24:03,916 INFO L605 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 [2018-10-24 18:24:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-24 18:24:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-24 18:24:04,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-24 18:24:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-24 18:24:04,133 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 101 [2018-10-24 18:24:04,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:24:04,134 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-24 18:24:04,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:24:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-24 18:24:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 18:24:04,137 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:24:04,137 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:24:04,138 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:24:04,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:24:04,138 INFO L82 PathProgramCache]: Analyzing trace with hash 946861634, now seen corresponding path program 1 times [2018-10-24 18:24:04,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:24:04,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:24:04,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:24:04,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:24:04,140 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:24:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:24:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:24:04,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:24:04,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:24:04,461 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:24:04,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:24:04,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:24:04,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:24:04,462 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-24 18:24:20,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:24:20,992 INFO L93 Difference]: Finished difference Result 25982 states and 40339 transitions. [2018-10-24 18:24:20,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:24:20,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-10-24 18:24:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:24:21,080 INFO L225 Difference]: With dead ends: 25982 [2018-10-24 18:24:21,080 INFO L226 Difference]: Without dead ends: 17383 [2018-10-24 18:24:21,105 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:24:21,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17383 states. [2018-10-24 18:24:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17383 to 17120. [2018-10-24 18:24:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17120 states. [2018-10-24 18:24:21,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17120 states to 17120 states and 24327 transitions. [2018-10-24 18:24:21,554 INFO L78 Accepts]: Start accepts. Automaton has 17120 states and 24327 transitions. Word has length 111 [2018-10-24 18:24:21,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:24:21,554 INFO L481 AbstractCegarLoop]: Abstraction has 17120 states and 24327 transitions. [2018-10-24 18:24:21,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:24:21,555 INFO L276 IsEmpty]: Start isEmpty. Operand 17120 states and 24327 transitions. [2018-10-24 18:24:21,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-24 18:24:21,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:24:21,560 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:24:21,561 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:24:21,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:24:21,561 INFO L82 PathProgramCache]: Analyzing trace with hash 979871088, now seen corresponding path program 1 times [2018-10-24 18:24:21,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:24:21,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:24:21,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:24:21,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:24:21,563 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:24:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:24:21,856 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:24:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:24:22,282 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:24:22,283 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:24:22,284 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-10-24 18:24:22,286 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2743], [2745], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 18:24:22,358 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:24:22,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:24:57,130 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:24:57,132 INFO L272 AbstractInterpreter]: Visited 108 different actions 720 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:24:57,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:24:57,146 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:25:00,611 INFO L232 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 72.15% of their original sizes. [2018-10-24 18:25:00,612 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:25:03,984 INFO L413 sIntCurrentIteration]: We have 127 unified AI predicates [2018-10-24 18:25:03,985 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:25:03,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:25:03,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-10-24 18:25:03,986 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:25:03,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 18:25:03,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 18:25:03,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-10-24 18:25:03,987 INFO L87 Difference]: Start difference. First operand 17120 states and 24327 transitions. Second operand 16 states. [2018-10-24 18:25:17,913 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 18:26:43,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 18:26:43,533 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:26:43,539 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:26:43,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:26:43 BoogieIcfgContainer [2018-10-24 18:26:43,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:26:43,541 INFO L168 Benchmark]: Toolchain (without parser) took 223832.46 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 294.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:26:43,542 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. [2018-10-24 18:26:43,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2499.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:26:43,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 627.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 827.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:26:43,545 INFO L168 Benchmark]: Boogie Preprocessor took 370.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:26:43,548 INFO L168 Benchmark]: RCFGBuilder took 11373.83 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 180.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 24.4 MB). Peak memory consumption was 649.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:26:43,548 INFO L168 Benchmark]: TraceAbstraction took 208954.89 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:26:43,557 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 2499.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 627.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 827.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 370.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11373.83 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 180.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 24.4 MB). Peak memory consumption was 649.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208954.89 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 72). Cancelled while BasicCegarLoop was constructing difference of abstraction (17120states) and FLOYD_HOARE automaton (currently 15 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (4534 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 208.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 163.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2096 SDtfs, 15903 SDslu, 2421 SDs, 0 SdLazy, 25012 SolverSat, 7763 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 98.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 170 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17120occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 34.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9929860690490613 AbsIntWeakeningRatio, 0.16535433070866143 AbsIntAvgWeakeningVarsNumRemoved, 537.1732283464567 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1330 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 465 NumberOfCodeBlocks, 465 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 460 ConstructedInterpolants, 0 QuantifiedInterpolants, 248548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 63/80 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown