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/Problem15_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:35:25,219 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:35:25,222 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:35:25,238 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:35:25,239 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:35:25,240 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:35:25,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:35:25,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:35:25,245 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:35:25,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:35:25,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:35:25,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:35:25,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:35:25,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:35:25,261 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:35:25,262 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:35:25,266 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:35:25,268 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:35:25,272 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:35:25,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:35:25,277 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:35:25,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:35:25,280 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 22:35:25,280 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 22:35:25,280 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 22:35:25,281 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 22:35:25,282 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 22:35:25,283 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 22:35:25,283 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 22:35:25,285 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 22:35:25,285 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 22:35:25,286 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 22:35:25,288 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 [2018-10-23 22:35:25,314 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:35:25,314 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:35:25,315 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:35:25,315 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:35:25,316 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:35:25,316 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:35:25,316 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:35:25,316 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:35:25,316 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:35:25,317 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:35:25,317 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:35:25,317 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:35:25,318 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:35:25,318 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:35:25,318 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:35:25,318 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:35:25,318 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:35:25,319 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:35:25,319 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:35:25,319 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:35:25,319 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:35:25,319 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:35:25,320 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:35:25,320 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:35:25,320 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:35:25,320 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:35:25,320 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:35:25,321 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:35:25,321 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:35:25,321 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:35:25,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:35:25,321 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:35:25,322 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:35:25,322 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:35:25,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:35:25,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:35:25,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:35:25,398 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:35:25,398 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:35:25,399 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-10-23 22:35:25,461 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/524c2d670/f257fe60f89147edaa73b446146eafae/FLAG0f469cc10 [2018-10-23 22:35:26,137 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:35:26,138 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-10-23 22:35:26,164 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/524c2d670/f257fe60f89147edaa73b446146eafae/FLAG0f469cc10 [2018-10-23 22:35:26,185 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/524c2d670/f257fe60f89147edaa73b446146eafae [2018-10-23 22:35:26,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:35:26,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:35:26,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:35:26,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:35:26,207 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:35:26,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:35:26" (1/1) ... [2018-10-23 22:35:26,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b33a858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:26, skipping insertion in model container [2018-10-23 22:35:26,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:35:26" (1/1) ... [2018-10-23 22:35:26,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:35:26,328 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:35:27,193 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:35:27,199 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:35:27,498 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:35:27,521 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:35:27,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27 WrapperNode [2018-10-23 22:35:27,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:35:27,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:35:27,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:35:27,523 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:35:27,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:27,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:27,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:35:27,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:35:27,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:35:27,938 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:35:27,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:27,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:27,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:27,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:28,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:28,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:28,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (1/1) ... [2018-10-23 22:35:28,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:35:28,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:35:28,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:35:28,151 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:35:28,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (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 [2018-10-23 22:35:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:35:28,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:35:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 22:35:28,227 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 22:35:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:35:28,227 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:35:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:35:28,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:35:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:35:28,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:35:35,028 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:35:35,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:35:35 BoogieIcfgContainer [2018-10-23 22:35:35,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:35:35,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:35:35,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:35:35,037 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:35:35,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:35:26" (1/3) ... [2018-10-23 22:35:35,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5f9261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:35:35, skipping insertion in model container [2018-10-23 22:35:35,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:35:27" (2/3) ... [2018-10-23 22:35:35,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5f9261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:35:35, skipping insertion in model container [2018-10-23 22:35:35,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:35:35" (3/3) ... [2018-10-23 22:35:35,043 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label34_false-unreach-call.c [2018-10-23 22:35:35,054 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:35:35,064 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:35:35,082 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:35:35,123 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:35:35,123 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:35:35,124 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:35:35,124 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:35:35,124 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:35:35,124 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:35:35,124 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:35:35,125 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:35:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-23 22:35:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-23 22:35:35,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:35:35,167 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] [2018-10-23 22:35:35,169 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:35:35,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:35:35,176 INFO L82 PathProgramCache]: Analyzing trace with hash 554449340, now seen corresponding path program 1 times [2018-10-23 22:35:35,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:35:35,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:35:35,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:35:35,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:35:35,240 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:35:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:35:35,688 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-23 22:35:35,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:35:35,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:35:35,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:35:35,698 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:35:35,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:35:35,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:35:35,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:35:35,724 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-23 22:35:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:35:44,946 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-23 22:35:44,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:35:44,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-10-23 22:35:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:35:44,988 INFO L225 Difference]: With dead ends: 1558 [2018-10-23 22:35:44,988 INFO L226 Difference]: Without dead ends: 1114 [2018-10-23 22:35:44,999 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:35:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-23 22:35:45,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-10-23 22:35:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-10-23 22:35:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-10-23 22:35:45,133 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 20 [2018-10-23 22:35:45,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:35:45,134 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-10-23 22:35:45,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:35:45,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-10-23 22:35:45,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-23 22:35:45,140 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:35:45,140 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:35:45,140 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:35:45,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:35:45,141 INFO L82 PathProgramCache]: Analyzing trace with hash 219727794, now seen corresponding path program 1 times [2018-10-23 22:35:45,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:35:45,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:35:45,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:35:45,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:35:45,143 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:35:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:35:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:35:45,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:35:45,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 22:35:45,439 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:35:45,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 22:35:45,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 22:35:45,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 22:35:45,442 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-10-23 22:35:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:35:54,369 INFO L93 Difference]: Finished difference Result 3240 states and 5580 transitions. [2018-10-23 22:35:54,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 22:35:54,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-10-23 22:35:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:35:54,387 INFO L225 Difference]: With dead ends: 3240 [2018-10-23 22:35:54,387 INFO L226 Difference]: Without dead ends: 2155 [2018-10-23 22:35:54,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:35:54,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2018-10-23 22:35:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2114. [2018-10-23 22:35:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-10-23 22:35:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-10-23 22:35:54,499 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 93 [2018-10-23 22:35:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:35:54,499 INFO L481 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-10-23 22:35:54,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 22:35:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-10-23 22:35:54,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 22:35:54,504 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:35:54,505 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:35:54,505 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:35:54,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:35:54,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1955423070, now seen corresponding path program 1 times [2018-10-23 22:35:54,505 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:35:54,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:35:54,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:35:54,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:35:54,509 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:35:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:35:54,780 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:35:54,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:35:54,781 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:35:54,782 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-10-23 22:35:54,784 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-23 22:35:54,852 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:35:54,853 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:35:56,669 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:35:56,671 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-23 22:35:56,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:35:56,680 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:35:57,757 INFO L232 lantSequenceWeakener]: Weakened 96 states. On average, predicates are now at 77.51% of their original sizes. [2018-10-23 22:35:57,758 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:35:58,111 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:35:58,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:35:58,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-23 22:35:58,113 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:35:58,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 22:35:58,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 22:35:58,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 22:35:58,114 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 7 states. [2018-10-23 22:36:00,680 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:37:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:37:18,670 INFO L93 Difference]: Finished difference Result 4532 states and 6731 transitions. [2018-10-23 22:37:18,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:37:18,670 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2018-10-23 22:37:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:37:18,683 INFO L225 Difference]: With dead ends: 4532 [2018-10-23 22:37:18,683 INFO L226 Difference]: Without dead ends: 2424 [2018-10-23 22:37:18,691 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:37:18,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2018-10-23 22:37:18,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2422. [2018-10-23 22:37:18,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2018-10-23 22:37:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3492 transitions. [2018-10-23 22:37:18,765 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3492 transitions. Word has length 101 [2018-10-23 22:37:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:37:18,766 INFO L481 AbstractCegarLoop]: Abstraction has 2422 states and 3492 transitions. [2018-10-23 22:37:18,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 22:37:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3492 transitions. [2018-10-23 22:37:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-23 22:37:18,777 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:37:18,780 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-23 22:37:18,780 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:37:18,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:37:18,781 INFO L82 PathProgramCache]: Analyzing trace with hash -628352103, now seen corresponding path program 1 times [2018-10-23 22:37:18,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:37:18,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:37:18,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:37:18,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:37:18,782 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:37:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:37:19,915 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-23 22:37:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:37:20,208 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:37:20,208 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:37:20,209 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-10-23 22:37:20,209 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-23 22:37:20,215 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:37:20,215 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:37:21,341 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:37:26,907 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:37:26,908 INFO L272 AbstractInterpreter]: Visited 104 different actions 299 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-23 22:37:26,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:37:26,918 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:37:29,571 INFO L232 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 77.73% of their original sizes. [2018-10-23 22:37:29,571 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:38:48,573 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:38:48,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:38:48,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [11] total 28 [2018-10-23 22:38:48,574 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:38:48,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-23 22:38:48,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-23 22:38:48,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2018-10-23 22:38:48,576 INFO L87 Difference]: Start difference. First operand 2422 states and 3492 transitions. Second operand 19 states. Received shutdown request... [2018-10-23 22:39:23,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-23 22:39:23,971 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:39:23,977 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:39:23,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:39:23 BoogieIcfgContainer [2018-10-23 22:39:23,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:39:23,978 INFO L168 Benchmark]: Toolchain (without parser) took 237779.06 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -246.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-23 22:39:23,980 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-23 22:39:23,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1319.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:39:23,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 415.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -900.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-23 22:39:23,982 INFO L168 Benchmark]: Boogie Preprocessor took 212.05 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-10-23 22:39:23,983 INFO L168 Benchmark]: RCFGBuilder took 6880.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 307.6 MB). Peak memory consumption was 307.6 MB. Max. memory is 7.1 GB. [2018-10-23 22:39:23,984 INFO L168 Benchmark]: TraceAbstraction took 228944.50 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 212.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-23 22:39:23,990 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1319.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 415.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -900.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 212.05 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6880.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 307.6 MB). Peak memory consumption was 307.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228944.50 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 212.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while BasicCegarLoop was constructing difference of abstraction (2422states) and FLOYD_HOARE automaton (currently 12 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (108 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 228.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 134.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 930 SDtfs, 3417 SDslu, 889 SDs, 0 SdLazy, 5592 SolverSat, 1134 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 318 GetRequests, 194 SyntacticMatches, 87 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 81.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2422occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9931820407363885 AbsIntWeakeningRatio, 0.1554054054054054 AbsIntAvgWeakeningVarsNumRemoved, 363.7804054054054 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 66 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 411 NumberOfCodeBlocks, 411 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 407 ConstructedInterpolants, 0 QuantifiedInterpolants, 447629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 122/133 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown