java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:32:18,229 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:32:18,231 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:32:18,250 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:32:18,250 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:32:18,254 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:32:18,256 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:32:18,259 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:32:18,269 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:32:18,270 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:32:18,271 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:32:18,272 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:32:18,273 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:32:18,273 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:32:18,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:32:18,282 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:32:18,283 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:32:18,285 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:32:18,289 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:32:18,290 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:32:18,291 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:32:18,293 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:32:18,295 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:32:18,295 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:32:18,296 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:32:18,297 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:32:18,298 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:32:18,298 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:32:18,299 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:32:18,300 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:32:18,301 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:32:18,301 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 23:32:18,304 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 [2018-10-26 23:32:18,328 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:32:18,328 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:32:18,329 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:32:18,330 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:32:18,331 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:32:18,331 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:32:18,331 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:32:18,331 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:32:18,332 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 23:32:18,332 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:32:18,332 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:32:18,332 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:32:18,333 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:32:18,334 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:32:18,334 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:32:18,334 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:32:18,334 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:32:18,334 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:32:18,335 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:32:18,337 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:32:18,337 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:32:18,337 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:32:18,337 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:32:18,337 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:32:18,338 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:32:18,338 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:32:18,338 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:32:18,339 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:32:18,339 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:32:18,339 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:32:18,339 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:32:18,339 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:32:18,340 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 23:32:18,340 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 23:32:18,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:32:18,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:32:18,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:32:18,433 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:32:18,434 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:32:18,435 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label55_false-unreach-call.c [2018-10-26 23:32:18,507 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bea8ab3c8/333d7dec39e74bd0a90bb4131baf3c13/FLAGc7b3e618d [2018-10-26 23:32:19,130 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:32:19,131 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label55_false-unreach-call.c [2018-10-26 23:32:19,152 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bea8ab3c8/333d7dec39e74bd0a90bb4131baf3c13/FLAGc7b3e618d [2018-10-26 23:32:19,168 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bea8ab3c8/333d7dec39e74bd0a90bb4131baf3c13 [2018-10-26 23:32:19,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:32:19,182 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:32:19,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:32:19,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:32:19,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:32:19,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:19,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128929bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19, skipping insertion in model container [2018-10-26 23:32:19,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:19,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:32:19,258 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:32:19,738 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:32:19,743 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:32:19,842 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:32:19,862 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:32:19,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19 WrapperNode [2018-10-26 23:32:19,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:32:19,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:32:19,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:32:19,865 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:32:19,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:19,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:32:20,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:32:20,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:32:20,076 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:32:20,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (1/1) ... [2018-10-26 23:32:20,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:32:20,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:32:20,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:32:20,188 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:32:20,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (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 [2018-10-26 23:32:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:32:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:32:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 23:32:20,276 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 23:32:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:32:20,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:32:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:32:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:32:23,322 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:32:23,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:32:23 BoogieIcfgContainer [2018-10-26 23:32:23,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:32:23,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:32:23,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:32:23,328 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:32:23,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:32:19" (1/3) ... [2018-10-26 23:32:23,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:32:23, skipping insertion in model container [2018-10-26 23:32:23,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:32:19" (2/3) ... [2018-10-26 23:32:23,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:32:23, skipping insertion in model container [2018-10-26 23:32:23,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:32:23" (3/3) ... [2018-10-26 23:32:23,332 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label55_false-unreach-call.c [2018-10-26 23:32:23,344 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:32:23,353 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:32:23,371 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:32:23,410 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:32:23,411 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:32:23,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:32:23,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:32:23,411 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:32:23,412 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:32:23,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:32:23,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:32:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-26 23:32:23,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 23:32:23,449 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:32:23,450 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] [2018-10-26 23:32:23,453 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:32:23,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:32:23,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1027379239, now seen corresponding path program 1 times [2018-10-26 23:32:23,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:32:23,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:32:23,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:32:23,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:32:23,517 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:32:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:32:23,862 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:32:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:32:23,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:32:23,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:32:23,973 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:32:23,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:32:23,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:32:23,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:32:24,002 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-26 23:32:25,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:32:25,942 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-26 23:32:25,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:32:25,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-10-26 23:32:25,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:32:25,967 INFO L225 Difference]: With dead ends: 574 [2018-10-26 23:32:25,967 INFO L226 Difference]: Without dead ends: 356 [2018-10-26 23:32:25,977 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:32:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-26 23:32:26,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-26 23:32:26,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-26 23:32:26,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-10-26 23:32:26,117 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 25 [2018-10-26 23:32:26,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:32:26,118 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-10-26 23:32:26,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:32:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-10-26 23:32:26,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-26 23:32:26,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:32:26,129 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:32:26,130 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:32:26,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:32:26,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1044812780, now seen corresponding path program 1 times [2018-10-26 23:32:26,132 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:32:26,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:32:26,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:32:26,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:32:26,135 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:32:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:32:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 23:32:26,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:32:26,576 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:32:26,577 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-10-26 23:32:26,579 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [101], [103], [106], [114], [122], [130], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:32:26,652 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:32:26,652 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:32:29,647 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:32:29,649 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-26 23:32:29,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:32:29,667 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:32:32,029 INFO L227 lantSequenceWeakener]: Weakened 98 states. On average, predicates are now at 73.58% of their original sizes. [2018-10-26 23:32:32,029 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:32:36,658 INFO L415 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2018-10-26 23:32:36,659 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:32:36,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:32:36,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-26 23:32:36,660 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:32:36,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 23:32:36,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 23:32:36,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-26 23:32:36,663 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-10-26 23:32:52,413 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:33:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:33:28,288 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-10-26 23:33:28,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 23:33:28,288 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 113 [2018-10-26 23:33:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:33:28,292 INFO L225 Difference]: With dead ends: 855 [2018-10-26 23:33:28,293 INFO L226 Difference]: Without dead ends: 505 [2018-10-26 23:33:28,296 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 116 GetRequests, 87 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-26 23:33:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-10-26 23:33:28,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-10-26 23:33:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-10-26 23:33:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-10-26 23:33:28,356 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 113 [2018-10-26 23:33:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:33:28,357 INFO L481 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-10-26 23:33:28,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 23:33:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-10-26 23:33:28,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-10-26 23:33:28,364 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:33:28,365 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:33:28,365 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:33:28,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:33:28,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1654373498, now seen corresponding path program 1 times [2018-10-26 23:33:28,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:33:28,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:33:28,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:33:28,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:33:28,368 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:33:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:33:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-26 23:33:28,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:33:28,637 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:33:28,638 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-10-26 23:33:28,638 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [101], [103], [106], [114], [122], [130], [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], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:33:28,644 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:33:28,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:33:29,971 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:33:42,453 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:33:42,453 INFO L272 AbstractInterpreter]: Visited 96 different actions 546 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-26 23:33:42,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:33:42,461 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:33:45,203 INFO L227 lantSequenceWeakener]: Weakened 33 states. On average, predicates are now at 75.3% of their original sizes. [2018-10-26 23:33:45,204 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:33:50,683 INFO L415 sIntCurrentIteration]: We unified 183 AI predicates to 183 [2018-10-26 23:33:50,684 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:33:50,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:33:50,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-10-26 23:33:50,685 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:33:50,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-26 23:33:50,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-26 23:33:50,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-10-26 23:33:50,687 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 16 states. [2018-10-26 23:36:06,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:36:06,643 INFO L93 Difference]: Finished difference Result 1233 states and 2047 transitions. [2018-10-26 23:36:06,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-26 23:36:06,643 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 184 [2018-10-26 23:36:06,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:36:06,648 INFO L225 Difference]: With dead ends: 1233 [2018-10-26 23:36:06,649 INFO L226 Difference]: Without dead ends: 883 [2018-10-26 23:36:06,651 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2018-10-26 23:36:06,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2018-10-26 23:36:06,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 800. [2018-10-26 23:36:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2018-10-26 23:36:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1087 transitions. [2018-10-26 23:36:06,774 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1087 transitions. Word has length 184 [2018-10-26 23:36:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:36:06,775 INFO L481 AbstractCegarLoop]: Abstraction has 800 states and 1087 transitions. [2018-10-26 23:36:06,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-26 23:36:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1087 transitions. [2018-10-26 23:36:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-26 23:36:06,779 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:36:06,779 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:36:06,780 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:36:06,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:36:06,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1418502721, now seen corresponding path program 1 times [2018-10-26 23:36:06,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:36:06,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:06,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:36:06,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:06,782 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:36:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:36:07,096 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:36:07,832 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-26 23:36:07,833 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:36:07,833 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:36:07,833 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-10-26 23:36:07,834 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [101], [103], [106], [114], [122], [130], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:36:07,839 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:36:07,839 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:36:09,448 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-26 23:36:23,908 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-26 23:36:23,909 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-26 23:36:23,910 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 23:36:23,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:36:23,910 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 [2018-10-26 23:36:23,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:36:23,922 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 23:36:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:36:24,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:36:24,028 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-26 23:36:24,228 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:36:24,229 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 23:36:24,234 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 23:36:24,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:36:24 BoogieIcfgContainer [2018-10-26 23:36:24,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:36:24,236 INFO L168 Benchmark]: Toolchain (without parser) took 245054.97 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 2.0 GB in the end (delta: -564.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-26 23:36:24,237 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 23:36:24,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-26 23:36:24,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 211.48 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-26 23:36:24,239 INFO L168 Benchmark]: Boogie Preprocessor took 111.45 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 23:36:24,240 INFO L168 Benchmark]: RCFGBuilder took 3135.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.2 MB). Peak memory consumption was 133.2 MB. Max. memory is 7.1 GB. [2018-10-26 23:36:24,240 INFO L168 Benchmark]: TraceAbstraction took 240910.33 ms. Allocated memory was 2.2 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 2.0 GB in the end (delta: 74.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-26 23:36:24,245 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 211.48 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.45 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3135.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.2 MB). Peak memory consumption was 133.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240910.33 ms. Allocated memory was 2.2 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 2.0 GB in the end (delta: 74.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was analyzing trace of length 194 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 240.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 189.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 1784 SDslu, 307 SDs, 0 SdLazy, 2533 SolverSat, 593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 311 GetRequests, 258 SyntacticMatches, 19 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=800occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 32.9s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9931589290100712 AbsIntWeakeningRatio, 0.15593220338983052 AbsIntAvgWeakeningVarsNumRemoved, 61.0271186440678 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 88 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 147959 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/125 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown