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/Problem11_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:05:16,199 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:05:16,201 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:05:16,218 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:05:16,219 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:05:16,220 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:05:16,222 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:05:16,224 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:05:16,228 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:05:16,228 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:05:16,230 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:05:16,230 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:05:16,231 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:05:16,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:05:16,240 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:05:16,241 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:05:16,241 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:05:16,246 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:05:16,249 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:05:16,251 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:05:16,253 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:05:16,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:05:16,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 01:05:16,268 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 01:05:16,269 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 01:05:16,271 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 01:05:16,273 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 01:05:16,273 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 01:05:16,298 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:05:16,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:05:16,300 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:05:16,300 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:05:16,300 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:05:16,300 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:05:16,300 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:05:16,301 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:05:16,301 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:05:16,301 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:05:16,301 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:05:16,301 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:05:16,302 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:05:16,302 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:05:16,302 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:05:16,303 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:05:16,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:05:16,303 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:05:16,303 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:05:16,303 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:05:16,304 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:05:16,304 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:05:16,304 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:05:16,304 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:05:16,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:05:16,304 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:05:16,305 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:05:16,305 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:05:16,305 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:05:16,305 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:05:16,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:05:16,306 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:05:16,306 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:05:16,306 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:05:16,350 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:05:16,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:05:16,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:05:16,375 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:05:16,376 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:05:16,376 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c [2018-10-24 01:05:16,445 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a76b9abca/be69984a5b2843be83079c6d389aa333/FLAGbe7a3784e [2018-10-24 01:05:17,068 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:05:17,069 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c [2018-10-24 01:05:17,094 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a76b9abca/be69984a5b2843be83079c6d389aa333/FLAGbe7a3784e [2018-10-24 01:05:17,114 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a76b9abca/be69984a5b2843be83079c6d389aa333 [2018-10-24 01:05:17,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:05:17,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:05:17,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:05:17,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:05:17,133 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:05:17,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:05:17" (1/1) ... [2018-10-24 01:05:17,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5722cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:17, skipping insertion in model container [2018-10-24 01:05:17,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:05:17" (1/1) ... [2018-10-24 01:05:17,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:05:17,225 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:05:17,876 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:05:17,883 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:05:18,022 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:05:18,042 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:05:18,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18 WrapperNode [2018-10-24 01:05:18,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:05:18,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:05:18,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:05:18,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:05:18,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:05:18,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:05:18,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:05:18,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:05:18,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (1/1) ... [2018-10-24 01:05:18,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:05:18,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:05:18,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:05:18,464 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:05:18,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (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 01:05:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:05:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:05:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:05:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:05:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:05:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:05:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:05:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:05:23,020 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:05:23,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:05:23 BoogieIcfgContainer [2018-10-24 01:05:23,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:05:23,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:05:23,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:05:23,026 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:05:23,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:05:17" (1/3) ... [2018-10-24 01:05:23,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772fbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:05:23, skipping insertion in model container [2018-10-24 01:05:23,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:18" (2/3) ... [2018-10-24 01:05:23,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772fbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:05:23, skipping insertion in model container [2018-10-24 01:05:23,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:05:23" (3/3) ... [2018-10-24 01:05:23,030 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label25_true-unreach-call.c [2018-10-24 01:05:23,040 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:05:23,050 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:05:23,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:05:23,110 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:05:23,110 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:05:23,110 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:05:23,111 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:05:23,111 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:05:23,111 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:05:23,111 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:05:23,111 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:05:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 01:05:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-24 01:05:23,150 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:05:23,153 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] [2018-10-24 01:05:23,155 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:05:23,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:05:23,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1384704100, now seen corresponding path program 1 times [2018-10-24 01:05:23,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:05:23,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:23,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:05:23,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:23,229 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:05:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:05:23,675 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 01:05:23,684 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 01:05:23,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:05:23,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:05:23,687 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:05:23,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:05:23,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:05:23,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:05:23,712 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 01:05:26,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:05:26,997 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-10-24 01:05:27,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:05:27,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-10-24 01:05:27,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:05:27,026 INFO L225 Difference]: With dead ends: 996 [2018-10-24 01:05:27,026 INFO L226 Difference]: Without dead ends: 697 [2018-10-24 01:05:27,039 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 01:05:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-10-24 01:05:27,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-10-24 01:05:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-10-24 01:05:27,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-10-24 01:05:27,130 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 38 [2018-10-24 01:05:27,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:05:27,131 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-10-24 01:05:27,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:05:27,131 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-10-24 01:05:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 01:05:27,137 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:05:27,137 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:05:27,138 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:05:27,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:05:27,138 INFO L82 PathProgramCache]: Analyzing trace with hash -331878893, now seen corresponding path program 1 times [2018-10-24 01:05:27,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:05:27,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:27,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:05:27,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:27,140 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:05:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:05:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:05:27,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:05:27,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:05:27,487 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:05:27,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:05:27,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:05:27,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:05:27,490 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-10-24 01:05:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:05:31,595 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-10-24 01:05:31,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:05:31,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-10-24 01:05:31,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:05:31,610 INFO L225 Difference]: With dead ends: 1725 [2018-10-24 01:05:31,610 INFO L226 Difference]: Without dead ends: 1250 [2018-10-24 01:05:31,616 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:05:31,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-10-24 01:05:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-10-24 01:05:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-10-24 01:05:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-10-24 01:05:31,701 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 111 [2018-10-24 01:05:31,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:05:31,702 INFO L481 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-10-24 01:05:31,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:05:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-10-24 01:05:31,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-24 01:05:31,712 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:05:31,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:31,712 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:05:31,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:05:31,713 INFO L82 PathProgramCache]: Analyzing trace with hash -689587928, now seen corresponding path program 1 times [2018-10-24 01:05:31,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:05:31,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:31,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:05:31,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:31,715 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:05:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:05:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:05:31,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:05:31,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:05:31,979 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:05:31,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:05:31,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:05:31,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:05:31,980 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 4 states. [2018-10-24 01:05:34,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:05:34,543 INFO L93 Difference]: Finished difference Result 3240 states and 4918 transitions. [2018-10-24 01:05:34,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:05:34,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2018-10-24 01:05:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:05:34,559 INFO L225 Difference]: With dead ends: 3240 [2018-10-24 01:05:34,560 INFO L226 Difference]: Without dead ends: 2015 [2018-10-24 01:05:34,568 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:05:34,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2018-10-24 01:05:34,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 2000. [2018-10-24 01:05:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2000 states. [2018-10-24 01:05:34,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2897 transitions. [2018-10-24 01:05:34,630 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2897 transitions. Word has length 112 [2018-10-24 01:05:34,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:05:34,631 INFO L481 AbstractCegarLoop]: Abstraction has 2000 states and 2897 transitions. [2018-10-24 01:05:34,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:05:34,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2897 transitions. [2018-10-24 01:05:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-24 01:05:34,636 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:05:34,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:34,637 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:05:34,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:05:34,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2107878529, now seen corresponding path program 1 times [2018-10-24 01:05:34,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:05:34,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:34,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:05:34,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:34,639 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:05:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:05:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:05:34,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:05:34,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:05:34,904 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:05:34,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:05:34,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:05:34,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:05:34,906 INFO L87 Difference]: Start difference. First operand 2000 states and 2897 transitions. Second operand 6 states. [2018-10-24 01:05:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:05:41,100 INFO L93 Difference]: Finished difference Result 7663 states and 13269 transitions. [2018-10-24 01:05:41,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 01:05:41,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-10-24 01:05:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:05:41,160 INFO L225 Difference]: With dead ends: 7663 [2018-10-24 01:05:41,160 INFO L226 Difference]: Without dead ends: 5669 [2018-10-24 01:05:41,225 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 01:05:41,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2018-10-24 01:05:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5142. [2018-10-24 01:05:41,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5142 states. [2018-10-24 01:05:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 7307 transitions. [2018-10-24 01:05:41,447 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 7307 transitions. Word has length 137 [2018-10-24 01:05:41,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:05:41,448 INFO L481 AbstractCegarLoop]: Abstraction has 5142 states and 7307 transitions. [2018-10-24 01:05:41,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:05:41,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 7307 transitions. [2018-10-24 01:05:41,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-24 01:05:41,457 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:05:41,457 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:05:41,457 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:05:41,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:05:41,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1631754857, now seen corresponding path program 1 times [2018-10-24 01:05:41,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:05:41,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:41,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:05:41,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:05:41,459 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:05:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:05:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:05:41,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:05:41,887 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:05:41,888 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-10-24 01:05:41,890 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], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:05:41,962 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:05:41,962 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:05:43,791 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:05:43,792 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 01:05:43,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:05:43,804 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:05:46,489 INFO L232 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 73.49% of their original sizes. [2018-10-24 01:05:46,489 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:05:47,008 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:05:47,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:05:47,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 01:05:47,010 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:05:47,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 01:05:47,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 01:05:47,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:05:47,012 INFO L87 Difference]: Start difference. First operand 5142 states and 7307 transitions. Second operand 7 states. [2018-10-24 01:05:49,518 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:06:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:06:30,232 INFO L93 Difference]: Finished difference Result 10470 states and 14826 transitions. [2018-10-24 01:06:30,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:06:30,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2018-10-24 01:06:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:06:30,267 INFO L225 Difference]: With dead ends: 10470 [2018-10-24 01:06:30,267 INFO L226 Difference]: Without dead ends: 5334 [2018-10-24 01:06:30,301 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 01:06:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2018-10-24 01:06:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5332. [2018-10-24 01:06:30,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5332 states. [2018-10-24 01:06:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 7507 transitions. [2018-10-24 01:06:30,473 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 7507 transitions. Word has length 185 [2018-10-24 01:06:30,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:06:30,474 INFO L481 AbstractCegarLoop]: Abstraction has 5332 states and 7507 transitions. [2018-10-24 01:06:30,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 01:06:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 7507 transitions. [2018-10-24 01:06:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-24 01:06:30,482 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:06:30,482 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:06:30,483 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:06:30,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:30,483 INFO L82 PathProgramCache]: Analyzing trace with hash -826417273, now seen corresponding path program 1 times [2018-10-24 01:06:30,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:06:30,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:30,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:06:30,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:30,485 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:06:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:06:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:31,090 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:06:31,090 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:06:31,090 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-10-24 01:06:31,091 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], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [502], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:06:31,102 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:06:31,102 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:06:34,404 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:06:49,330 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 01:06:49,330 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:06:49,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:49,339 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 01:06:49,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:06:49,339 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 01:06:49,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:06:49,349 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 01:06:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:06:49,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 01:06:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:49,844 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 01:06:50,009 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-24 01:06:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:50,488 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 01:06:50,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-24 01:06:50,488 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 01:06:50,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 01:06:50,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 01:06:50,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 01:06:50,490 INFO L87 Difference]: Start difference. First operand 5332 states and 7507 transitions. Second operand 9 states. [2018-10-24 01:07:00,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:07:00,826 INFO L93 Difference]: Finished difference Result 14930 states and 27251 transitions. [2018-10-24 01:07:00,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 01:07:00,827 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 242 [2018-10-24 01:07:00,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:07:00,937 INFO L225 Difference]: With dead ends: 14930 [2018-10-24 01:07:00,937 INFO L226 Difference]: Without dead ends: 9794 [2018-10-24 01:07:01,096 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 487 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-10-24 01:07:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9794 states. [2018-10-24 01:07:01,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9794 to 9682. [2018-10-24 01:07:01,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9682 states. [2018-10-24 01:07:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9682 states to 9682 states and 16280 transitions. [2018-10-24 01:07:01,685 INFO L78 Accepts]: Start accepts. Automaton has 9682 states and 16280 transitions. Word has length 242 [2018-10-24 01:07:01,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:07:01,685 INFO L481 AbstractCegarLoop]: Abstraction has 9682 states and 16280 transitions. [2018-10-24 01:07:01,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 01:07:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 9682 states and 16280 transitions. [2018-10-24 01:07:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-10-24 01:07:01,699 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:07:01,699 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:07:01,700 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:07:01,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:07:01,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1119037538, now seen corresponding path program 1 times [2018-10-24 01:07:01,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:07:01,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:07:01,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:07:01,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:07:01,703 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:07:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:07:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 01:07:02,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:07:02,695 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:07:02,696 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-10-24 01:07:02,696 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], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [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], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:07:02,705 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:07:02,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:07:06,291 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:07:23,571 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:07:23,572 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:07:23,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:07:23,616 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:07:29,972 INFO L232 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 74.13% of their original sizes. [2018-10-24 01:07:29,973 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:07:42,140 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:07:42,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:07:42,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-10-24 01:07:42,141 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:07:42,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 01:07:42,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 01:07:42,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-10-24 01:07:42,142 INFO L87 Difference]: Start difference. First operand 9682 states and 16280 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 01:08:47,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 01:08:47,712 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:08:47,719 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:08:47,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:08:47 BoogieIcfgContainer [2018-10-24 01:08:47,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:08:47,720 INFO L168 Benchmark]: Toolchain (without parser) took 210593.48 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 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 01:08:47,721 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 01:08:47,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 914.01 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:08:47,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 288.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-24 01:08:47,724 INFO L168 Benchmark]: Boogie Preprocessor took 131.76 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 01:08:47,724 INFO L168 Benchmark]: RCFGBuilder took 4557.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 186.6 MB). Peak memory consumption was 186.6 MB. Max. memory is 7.1 GB. [2018-10-24 01:08:47,725 INFO L168 Benchmark]: TraceAbstraction took 204696.43 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -623.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 01:08:47,730 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 914.01 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 288.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.76 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4557.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 186.6 MB). Peak memory consumption was 186.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204696.43 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -623.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 99). Cancelled while BasicCegarLoop was constructing difference of abstraction (9682states) and FLOYD_HOARE automaton (currently 15 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (184 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 204.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 135.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1436 SDtfs, 5874 SDslu, 1483 SDs, 0 SdLazy, 11600 SolverSat, 2462 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 67.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 982 GetRequests, 912 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9682occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 41.0s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.995344404120386 AbsIntWeakeningRatio, 0.12933025404157045 AbsIntAvgWeakeningVarsNumRemoved, 635.8314087759816 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 891 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1317 NumberOfCodeBlocks, 1317 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1550 ConstructedInterpolants, 0 QuantifiedInterpolants, 955185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 713/786 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown