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/Problem10_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 20:55:26,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 20:55:26,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 20:55:26,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 20:55:26,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 20:55:26,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 20:55:26,615 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 20:55:26,617 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 20:55:26,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 20:55:26,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 20:55:26,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 20:55:26,620 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 20:55:26,621 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 20:55:26,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 20:55:26,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 20:55:26,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 20:55:26,625 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 20:55:26,627 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 20:55:26,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 20:55:26,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 20:55:26,631 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 20:55:26,632 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 20:55:26,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 20:55:26,635 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 20:55:26,635 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 20:55:26,636 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 20:55:26,637 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 20:55:26,638 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 20:55:26,639 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 20:55:26,640 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 20:55:26,640 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 20:55:26,641 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 20:55:26,641 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 20:55:26,641 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 20:55:26,643 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 20:55:26,643 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 20:55:26,644 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 20:55:26,660 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 20:55:26,660 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 20:55:26,661 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 20:55:26,661 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 20:55:26,661 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 20:55:26,662 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 20:55:26,662 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 20:55:26,662 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 20:55:26,662 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 20:55:26,662 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 20:55:26,663 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 20:55:26,663 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 20:55:26,663 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 20:55:26,664 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 20:55:26,664 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 20:55:26,664 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 20:55:26,664 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 20:55:26,664 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 20:55:26,665 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 20:55:26,665 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 20:55:26,665 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 20:55:26,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 20:55:26,665 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 20:55:26,666 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 20:55:26,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 20:55:26,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 20:55:26,666 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 20:55:26,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 20:55:26,667 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 20:55:26,667 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 20:55:26,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 20:55:26,667 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 20:55:26,667 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 20:55:26,668 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 20:55:26,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 20:55:26,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 20:55:26,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 20:55:26,737 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 20:55:26,737 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 20:55:26,738 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-10-24 20:55:26,797 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cddc98224/58c9a8c67e9a4eb5bf40eed759452448/FLAG9d0036ef2 [2018-10-24 20:55:27,418 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 20:55:27,419 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-10-24 20:55:27,442 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cddc98224/58c9a8c67e9a4eb5bf40eed759452448/FLAG9d0036ef2 [2018-10-24 20:55:27,463 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cddc98224/58c9a8c67e9a4eb5bf40eed759452448 [2018-10-24 20:55:27,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 20:55:27,478 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 20:55:27,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 20:55:27,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 20:55:27,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 20:55:27,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:55:27" (1/1) ... [2018-10-24 20:55:27,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11290b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:27, skipping insertion in model container [2018-10-24 20:55:27,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:55:27" (1/1) ... [2018-10-24 20:55:27,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 20:55:27,564 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 20:55:27,988 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:55:27,993 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 20:55:28,138 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:55:28,157 INFO L193 MainTranslator]: Completed translation [2018-10-24 20:55:28,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28 WrapperNode [2018-10-24 20:55:28,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 20:55:28,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 20:55:28,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 20:55:28,159 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 20:55:28,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 20:55:28,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 20:55:28,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 20:55:28,385 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 20:55:28,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (1/1) ... [2018-10-24 20:55:28,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 20:55:28,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 20:55:28,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 20:55:28,486 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 20:55:28,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (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 20:55:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 20:55:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 20:55:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 20:55:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 20:55:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 20:55:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 20:55:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 20:55:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 20:55:32,011 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 20:55:32,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:55:32 BoogieIcfgContainer [2018-10-24 20:55:32,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 20:55:32,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 20:55:32,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 20:55:32,022 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 20:55:32,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:55:27" (1/3) ... [2018-10-24 20:55:32,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424a1850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:55:32, skipping insertion in model container [2018-10-24 20:55:32,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:28" (2/3) ... [2018-10-24 20:55:32,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424a1850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:55:32, skipping insertion in model container [2018-10-24 20:55:32,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:55:32" (3/3) ... [2018-10-24 20:55:32,026 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label07_true-unreach-call.c [2018-10-24 20:55:32,036 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 20:55:32,045 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 20:55:32,063 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 20:55:32,101 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 20:55:32,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 20:55:32,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 20:55:32,102 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 20:55:32,102 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 20:55:32,103 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 20:55:32,103 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 20:55:32,103 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 20:55:32,130 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 20:55:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-24 20:55:32,140 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:55:32,141 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 20:55:32,143 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:55:32,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:55:32,150 INFO L82 PathProgramCache]: Analyzing trace with hash 154949884, now seen corresponding path program 1 times [2018-10-24 20:55:32,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:55:32,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:32,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:55:32,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:32,209 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:55:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:55:32,645 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 20:55:32,762 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 20:55:32,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 20:55:32,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 20:55:32,766 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:55:32,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 20:55:32,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 20:55:32,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 20:55:32,791 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 20:55:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:55:34,195 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 20:55:34,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 20:55:34,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-10-24 20:55:34,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:55:34,217 INFO L225 Difference]: With dead ends: 574 [2018-10-24 20:55:34,218 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 20:55:34,226 INFO L605 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 [2018-10-24 20:55:34,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 20:55:34,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 20:55:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 20:55:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 612 transitions. [2018-10-24 20:55:34,305 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 612 transitions. Word has length 52 [2018-10-24 20:55:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:55:34,307 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 612 transitions. [2018-10-24 20:55:34,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 20:55:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 612 transitions. [2018-10-24 20:55:34,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-24 20:55:34,320 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:55:34,320 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:55:34,321 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:55:34,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:55:34,321 INFO L82 PathProgramCache]: Analyzing trace with hash -169844341, now seen corresponding path program 1 times [2018-10-24 20:55:34,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:55:34,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:34,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:55:34,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:34,325 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:55:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:55:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 20:55:34,669 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:55:34,669 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:55:34,671 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-10-24 20:55:34,673 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:55:34,744 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:55:34,744 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:55:36,946 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:55:40,346 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:55:40,348 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 20:55:40,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:55:40,365 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:55:42,777 INFO L232 lantSequenceWeakener]: Weakened 121 states. On average, predicates are now at 74.07% of their original sizes. [2018-10-24 20:55:42,777 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:55:43,875 INFO L413 sIntCurrentIteration]: We have 122 unified AI predicates [2018-10-24 20:55:43,875 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:55:43,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:55:43,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2018-10-24 20:55:43,876 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:55:43,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 20:55:43,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 20:55:43,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-10-24 20:55:43,879 INFO L87 Difference]: Start difference. First operand 356 states and 612 transitions. Second operand 12 states. [2018-10-24 20:56:34,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:56:34,280 INFO L93 Difference]: Finished difference Result 1599 states and 2908 transitions. [2018-10-24 20:56:34,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-24 20:56:34,280 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 123 [2018-10-24 20:56:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:56:34,289 INFO L225 Difference]: With dead ends: 1599 [2018-10-24 20:56:34,289 INFO L226 Difference]: Without dead ends: 1249 [2018-10-24 20:56:34,297 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2018-10-24 20:56:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2018-10-24 20:56:34,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 871. [2018-10-24 20:56:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2018-10-24 20:56:34,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1162 transitions. [2018-10-24 20:56:34,363 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1162 transitions. Word has length 123 [2018-10-24 20:56:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:56:34,364 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1162 transitions. [2018-10-24 20:56:34,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 20:56:34,364 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1162 transitions. [2018-10-24 20:56:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-24 20:56:34,371 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:56:34,371 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-10-24 20:56:34,371 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:56:34,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:56:34,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1829551783, now seen corresponding path program 1 times [2018-10-24 20:56:34,372 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:56:34,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:56:34,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:56:34,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:56:34,374 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:56:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:56:34,734 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 20:56:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-24 20:56:35,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:56:35,021 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:56:35,021 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-10-24 20:56:35,022 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:56:35,027 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:56:35,027 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:56:36,386 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:56:41,860 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:56:41,860 INFO L272 AbstractInterpreter]: Visited 84 different actions 324 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-24 20:56:41,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:56:41,868 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:56:44,335 INFO L232 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 77.56% of their original sizes. [2018-10-24 20:56:44,336 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:56:53,970 INFO L413 sIntCurrentIteration]: We have 198 unified AI predicates [2018-10-24 20:56:53,971 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:56:53,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:56:53,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [4] total 16 [2018-10-24 20:56:53,971 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:56:53,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 20:56:53,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 20:56:53,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-24 20:56:53,973 INFO L87 Difference]: Start difference. First operand 871 states and 1162 transitions. Second operand 14 states. [2018-10-24 20:58:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:58:56,194 INFO L93 Difference]: Finished difference Result 2352 states and 3429 transitions. [2018-10-24 20:58:56,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 20:58:56,194 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2018-10-24 20:58:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:58:56,205 INFO L225 Difference]: With dead ends: 2352 [2018-10-24 20:58:56,205 INFO L226 Difference]: Without dead ends: 1631 [2018-10-24 20:58:56,209 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 204 GetRequests, 175 SyntacticMatches, 11 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2018-10-24 20:58:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2018-10-24 20:58:56,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1620. [2018-10-24 20:58:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1620 states. [2018-10-24 20:58:56,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 1975 transitions. [2018-10-24 20:58:56,383 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 1975 transitions. Word has length 199 [2018-10-24 20:58:56,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:58:56,384 INFO L481 AbstractCegarLoop]: Abstraction has 1620 states and 1975 transitions. [2018-10-24 20:58:56,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-24 20:58:56,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 1975 transitions. [2018-10-24 20:58:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-24 20:58:56,389 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:58:56,389 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-10-24 20:58:56,390 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:58:56,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:58:56,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1143072624, now seen corresponding path program 1 times [2018-10-24 20:58:56,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:58:56,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:58:56,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:58:56,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:58:56,392 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:58:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:58:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 20:58:56,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:58:56,992 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:58:56,992 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-10-24 20:58:56,993 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:58:56,997 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:58:56,997 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:58:58,486 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:59:07,823 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:59:07,823 INFO L272 AbstractInterpreter]: Visited 88 different actions 498 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 20:59:07,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:59:07,833 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:59:09,828 INFO L232 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 74.66% of their original sizes. [2018-10-24 20:59:09,829 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 20:59:18,596 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 20:59:18,601 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 20:59:18,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:59:18 BoogieIcfgContainer [2018-10-24 20:59:18,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 20:59:18,602 INFO L168 Benchmark]: Toolchain (without parser) took 231125.31 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -489.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 20:59:18,604 INFO L168 Benchmark]: CDTParser took 0.24 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 20:59:18,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 20:59:18,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 225.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2018-10-24 20:59:18,607 INFO L168 Benchmark]: Boogie Preprocessor took 101.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2018-10-24 20:59:18,608 INFO L168 Benchmark]: RCFGBuilder took 3526.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.6 MB). Peak memory consumption was 121.6 MB. Max. memory is 7.1 GB. [2018-10-24 20:59:18,609 INFO L168 Benchmark]: TraceAbstraction took 226588.15 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 188.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 20:59:18,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 677.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 225.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3526.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.6 MB). Peak memory consumption was 121.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226588.15 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 188.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was analyzing trace of length 207 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 11 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 226.5s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 174.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 504 SDtfs, 2683 SDslu, 629 SDs, 0 SdLazy, 3998 SolverSat, 963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 344 GetRequests, 289 SyntacticMatches, 13 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1620occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 23.3s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9937474120082814 AbsIntWeakeningRatio, 0.13714285714285715 AbsIntAvgWeakeningVarsNumRemoved, 169.38476190476192 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 389 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 189352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/206 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown