java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label58_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:39:22,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:39:22,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:39:22,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:39:22,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:39:22,265 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:39:22,266 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:39:22,268 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:39:22,270 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:39:22,271 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:39:22,272 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:39:22,272 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:39:22,273 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:39:22,274 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:39:22,275 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:39:22,276 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:39:22,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:39:22,279 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:39:22,281 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:39:22,283 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:39:22,284 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:39:22,286 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:39:22,288 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:39:22,289 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:39:22,289 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:39:22,290 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:39:22,291 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:39:22,292 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:39:22,293 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:39:22,294 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:39:22,295 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:39:22,296 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 19:39:22,298 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:39:22,315 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:39:22,315 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:39:22,316 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:39:22,316 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:39:22,317 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:39:22,317 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:39:22,317 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:39:22,317 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:39:22,317 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:39:22,318 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:39:22,318 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:39:22,319 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:39:22,319 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:39:22,319 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:39:22,319 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:39:22,319 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:39:22,320 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:39:22,320 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:39:22,320 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:39:22,320 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:39:22,320 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:39:22,321 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:39:22,321 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:39:22,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:39:22,321 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:39:22,322 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:39:22,322 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:39:22,322 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:39:22,322 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:39:22,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:39:22,323 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:39:22,323 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:39:22,323 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:39:22,370 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:39:22,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:39:22,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:39:22,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:39:22,393 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:39:22,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label58_false-unreach-call_false-termination.c [2018-07-23 19:39:22,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a3590e8/6892a8a8f8354b898ce8dc7cf7088b4d/FLAG2dac3927f [2018-07-23 19:39:23,105 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:39:23,109 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label58_false-unreach-call_false-termination.c [2018-07-23 19:39:23,129 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a3590e8/6892a8a8f8354b898ce8dc7cf7088b4d/FLAG2dac3927f [2018-07-23 19:39:23,155 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a3590e8/6892a8a8f8354b898ce8dc7cf7088b4d [2018-07-23 19:39:23,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:39:23,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:39:23,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:39:23,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:39:23,184 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:39:23,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:39:23" (1/1) ... [2018-07-23 19:39:23,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e5971b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:23, skipping insertion in model container [2018-07-23 19:39:23,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:39:23" (1/1) ... [2018-07-23 19:39:23,435 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:39:23,749 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:39:23,770 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:39:23,986 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:39:24,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24 WrapperNode [2018-07-23 19:39:24,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:39:24,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:39:24,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:39:24,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:39:24,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:39:24,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:39:24,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:39:24,187 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:39:24,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... [2018-07-23 19:39:24,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:39:24,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:39:24,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:39:24,555 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:39:24,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-23 19:39:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:39:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:39:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:39:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:39:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:39:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:39:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 19:39:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 19:39:28,162 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:39:28,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:39:28 BoogieIcfgContainer [2018-07-23 19:39:28,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:39:28,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:39:28,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:39:28,168 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:39:28,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:39:23" (1/3) ... [2018-07-23 19:39:28,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb45850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:39:28, skipping insertion in model container [2018-07-23 19:39:28,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:39:24" (2/3) ... [2018-07-23 19:39:28,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb45850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:39:28, skipping insertion in model container [2018-07-23 19:39:28,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:39:28" (3/3) ... [2018-07-23 19:39:28,173 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label58_false-unreach-call_false-termination.c [2018-07-23 19:39:28,184 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:39:28,197 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:39:28,266 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:39:28,268 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:39:28,269 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:39:28,269 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:39:28,269 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:39:28,269 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:39:28,270 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:39:28,270 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:39:28,270 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:39:28,297 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-07-23 19:39:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 19:39:28,305 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:39:28,306 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:39:28,306 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:39:28,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1528383391, now seen corresponding path program 1 times [2018-07-23 19:39:28,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:39:28,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:28,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:39:28,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:28,369 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:39:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:39:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:39:28,723 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:39:28,723 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:39:28,724 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:39:28,732 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:39:28,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:39:28,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:39:28,752 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-07-23 19:39:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:39:31,988 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-07-23 19:39:31,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:39:31,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-23 19:39:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:39:32,015 INFO L225 Difference]: With dead ends: 894 [2018-07-23 19:39:32,016 INFO L226 Difference]: Without dead ends: 633 [2018-07-23 19:39:32,024 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:39:32,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-07-23 19:39:32,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-07-23 19:39:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-07-23 19:39:32,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1007 transitions. [2018-07-23 19:39:32,126 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1007 transitions. Word has length 21 [2018-07-23 19:39:32,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:39:32,127 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 1007 transitions. [2018-07-23 19:39:32,127 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:39:32,127 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1007 transitions. [2018-07-23 19:39:32,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 19:39:32,135 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:39:32,136 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:39:32,136 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:39:32,136 INFO L82 PathProgramCache]: Analyzing trace with hash -853432685, now seen corresponding path program 1 times [2018-07-23 19:39:32,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:39:32,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:32,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:39:32,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:32,138 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:39:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:39:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:39:32,449 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:39:32,449 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:39:32,450 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:39:32,452 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:39:32,452 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:39:32,452 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:39:32,453 INFO L87 Difference]: Start difference. First operand 633 states and 1007 transitions. Second operand 4 states. [2018-07-23 19:39:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:39:35,977 INFO L93 Difference]: Finished difference Result 2358 states and 3922 transitions. [2018-07-23 19:39:35,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:39:35,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-07-23 19:39:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:39:35,992 INFO L225 Difference]: With dead ends: 2358 [2018-07-23 19:39:35,993 INFO L226 Difference]: Without dead ends: 1731 [2018-07-23 19:39:36,000 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:39:36,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-07-23 19:39:36,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-07-23 19:39:36,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-07-23 19:39:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2621 transitions. [2018-07-23 19:39:36,086 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2621 transitions. Word has length 134 [2018-07-23 19:39:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:39:36,087 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2621 transitions. [2018-07-23 19:39:36,087 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:39:36,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2621 transitions. [2018-07-23 19:39:36,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 19:39:36,107 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:39:36,107 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:39:36,110 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:39:36,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1514703100, now seen corresponding path program 1 times [2018-07-23 19:39:36,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:39:36,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:36,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:39:36,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:36,115 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:39:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:39:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:39:36,392 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:39:36,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:39:36,392 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:39:36,393 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:39:36,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:39:36,394 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:39:36,394 INFO L87 Difference]: Start difference. First operand 1731 states and 2621 transitions. Second operand 4 states. [2018-07-23 19:39:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:39:39,647 INFO L93 Difference]: Finished difference Result 6200 states and 9916 transitions. [2018-07-23 19:39:39,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:39:39,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 155 [2018-07-23 19:39:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:39:39,687 INFO L225 Difference]: With dead ends: 6200 [2018-07-23 19:39:39,688 INFO L226 Difference]: Without dead ends: 4475 [2018-07-23 19:39:39,715 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:39:39,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2018-07-23 19:39:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4292. [2018-07-23 19:39:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2018-07-23 19:39:39,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 6361 transitions. [2018-07-23 19:39:39,885 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 6361 transitions. Word has length 155 [2018-07-23 19:39:39,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:39:39,886 INFO L471 AbstractCegarLoop]: Abstraction has 4292 states and 6361 transitions. [2018-07-23 19:39:39,886 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:39:39,886 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 6361 transitions. [2018-07-23 19:39:39,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-07-23 19:39:39,902 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:39:39,902 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:39:39,902 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:39:39,903 INFO L82 PathProgramCache]: Analyzing trace with hash 418235308, now seen corresponding path program 1 times [2018-07-23 19:39:39,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:39:39,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:39,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:39:39,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:39,905 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:39:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:39:40,477 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-07-23 19:39:40,841 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-07-23 19:39:40,959 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-07-23 19:39:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 119 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-23 19:39:41,311 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:39:41,311 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:39:41,312 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 314 with the following transitions: [2018-07-23 19:39:41,314 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [93], [95], [98], [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], [498], [506], [514], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [586], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [972], [973], [974], [975], [977], [978] [2018-07-23 19:39:41,383 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:39:41,383 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:39:49,026 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:39:49,028 INFO L272 AbstractInterpreter]: Visited 137 different actions 137 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 19:39:49,040 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:39:54,285 INFO L232 lantSequenceWeakener]: Weakened 302 states. On average, predicates are now at 77.4% of their original sizes. [2018-07-23 19:39:54,286 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:39:54,745 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:39:54,746 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:39:54,747 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2018-07-23 19:39:54,747 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:39:54,748 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 19:39:54,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 19:39:54,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:39:54,748 INFO L87 Difference]: Start difference. First operand 4292 states and 6361 transitions. Second operand 7 states. [2018-07-23 19:40:03,810 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:40:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:40:12,341 INFO L93 Difference]: Finished difference Result 8763 states and 12926 transitions. [2018-07-23 19:40:12,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:40:12,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 313 [2018-07-23 19:40:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:40:12,373 INFO L225 Difference]: With dead ends: 8763 [2018-07-23 19:40:12,373 INFO L226 Difference]: Without dead ends: 4477 [2018-07-23 19:40:12,399 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 313 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:40:12,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4477 states. [2018-07-23 19:40:12,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4477 to 4475. [2018-07-23 19:40:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4475 states. [2018-07-23 19:40:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4475 states to 4475 states and 6552 transitions. [2018-07-23 19:40:12,553 INFO L78 Accepts]: Start accepts. Automaton has 4475 states and 6552 transitions. Word has length 313 [2018-07-23 19:40:12,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:40:12,554 INFO L471 AbstractCegarLoop]: Abstraction has 4475 states and 6552 transitions. [2018-07-23 19:40:12,554 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 19:40:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4475 states and 6552 transitions. [2018-07-23 19:40:12,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-07-23 19:40:12,572 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:40:12,572 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:40:12,572 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:40:12,573 INFO L82 PathProgramCache]: Analyzing trace with hash 774704195, now seen corresponding path program 1 times [2018-07-23 19:40:12,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:40:12,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:12,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:40:12,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:12,576 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:40:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:40:13,142 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 19:40:13,534 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 19:40:13,888 WARN L169 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-23 19:40:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 130 proven. 164 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 19:40:14,449 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:40:14,450 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:40:14,450 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 325 with the following transitions: [2018-07-23 19:40:14,451 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [93], [95], [98], [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], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [578], [579], [583], [586], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [972], [973], [974], [975], [977], [978] [2018-07-23 19:40:14,457 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:40:14,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:40:32,897 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:40:32,897 INFO L272 AbstractInterpreter]: Visited 140 different actions 273 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:40:32,906 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:40:43,099 INFO L232 lantSequenceWeakener]: Weakened 322 states. On average, predicates are now at 77.45% of their original sizes. [2018-07-23 19:40:43,099 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:40:44,222 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:40:44,223 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:40:44,223 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2018-07-23 19:40:44,224 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:40:44,225 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:40:44,225 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:40:44,225 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:40:44,226 INFO L87 Difference]: Start difference. First operand 4475 states and 6552 transitions. Second operand 11 states. [2018-07-23 19:41:18,192 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:41:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:41:43,272 INFO L93 Difference]: Finished difference Result 9133 states and 13395 transitions. [2018-07-23 19:41:43,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 19:41:43,272 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 324 [2018-07-23 19:41:43,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:41:43,302 INFO L225 Difference]: With dead ends: 9133 [2018-07-23 19:41:43,303 INFO L226 Difference]: Without dead ends: 4847 [2018-07-23 19:41:43,328 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 330 GetRequests, 305 SyntacticMatches, 9 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 19:41:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2018-07-23 19:41:43,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4844. [2018-07-23 19:41:43,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4844 states. [2018-07-23 19:41:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 6938 transitions. [2018-07-23 19:41:43,465 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 6938 transitions. Word has length 324 [2018-07-23 19:41:43,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:41:43,466 INFO L471 AbstractCegarLoop]: Abstraction has 4844 states and 6938 transitions. [2018-07-23 19:41:43,466 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:41:43,466 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 6938 transitions. [2018-07-23 19:41:43,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-07-23 19:41:43,486 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:41:43,486 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:41:43,487 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:41:43,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1147073466, now seen corresponding path program 1 times [2018-07-23 19:41:43,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:41:43,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:41:43,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:41:43,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:41:43,491 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:41:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:41:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 254 proven. 224 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-23 19:41:44,636 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:41:44,636 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:41:44,636 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 425 with the following transitions: [2018-07-23 19:41:44,637 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [93], [95], [98], [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], [498], [506], [514], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [586], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [682], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [972], [973], [974], [975], [977], [978] [2018-07-23 19:41:44,642 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:41:44,642 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:42:12,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:42:12,716 INFO L272 AbstractInterpreter]: Visited 141 different actions 276 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:42:12,722 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:42:31,519 INFO L232 lantSequenceWeakener]: Weakened 422 states. On average, predicates are now at 77.43% of their original sizes. [2018-07-23 19:42:31,520 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:42:32,322 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:42:32,322 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:42:32,322 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2018-07-23 19:42:32,323 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:42:32,323 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:42:32,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:42:32,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:42:32,324 INFO L87 Difference]: Start difference. First operand 4844 states and 6938 transitions. Second operand 11 states. [2018-07-23 19:43:00,148 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:43:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:43:10,659 INFO L93 Difference]: Finished difference Result 9318 states and 13506 transitions. [2018-07-23 19:43:10,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 19:43:10,659 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 424 [2018-07-23 19:43:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:43:10,685 INFO L225 Difference]: With dead ends: 9318 [2018-07-23 19:43:10,685 INFO L226 Difference]: Without dead ends: 5032 [2018-07-23 19:43:10,702 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 431 GetRequests, 405 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-07-23 19:43:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5032 states. [2018-07-23 19:43:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5032 to 5029. [2018-07-23 19:43:10,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5029 states. [2018-07-23 19:43:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 7137 transitions. [2018-07-23 19:43:10,833 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 7137 transitions. Word has length 424 [2018-07-23 19:43:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:43:10,834 INFO L471 AbstractCegarLoop]: Abstraction has 5029 states and 7137 transitions. [2018-07-23 19:43:10,834 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:43:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 7137 transitions. [2018-07-23 19:43:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-07-23 19:43:10,853 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:10,854 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:43:10,854 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:10,854 INFO L82 PathProgramCache]: Analyzing trace with hash -590026891, now seen corresponding path program 1 times [2018-07-23 19:43:10,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:10,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:10,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:10,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:10,856 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 149 proven. 166 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2018-07-23 19:43:11,318 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:43:11,318 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:43:11,319 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 436 with the following transitions: [2018-07-23 19:43:11,319 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [93], [95], [98], [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], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [578], [579], [583], [586], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [682], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [972], [973], [974], [975], [977], [978] [2018-07-23 19:43:11,323 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:43:11,323 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 19:43:17,591 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 19:43:17,592 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 19:43:17,593 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 19:43:17,593 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:43:17,593 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-23 19:43:17,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:17,603 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 19:43:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:17,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 19:43:17,871 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 19:43:18,072 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 19:43:18,072 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:43:18,078 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:43:18,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:43:18 BoogieIcfgContainer [2018-07-23 19:43:18,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:43:18,080 INFO L168 Benchmark]: Toolchain (without parser) took 234909.35 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 203.4 MB. Max. memory is 7.1 GB. [2018-07-23 19:43:18,081 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-07-23 19:43:18,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 869.94 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-23 19:43:18,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 19:43:18,083 INFO L168 Benchmark]: Boogie Preprocessor took 368.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -839.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:43:18,084 INFO L168 Benchmark]: RCFGBuilder took 3608.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 145.7 MB). Peak memory consumption was 145.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:43:18,085 INFO L168 Benchmark]: TraceAbstraction took 229914.40 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:43:18,089 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 869.94 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 142.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 368.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -839.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3608.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 145.7 MB). Peak memory consumption was 145.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229914.40 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 93.1 MB. 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 analyzing trace of length 436 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 229.8s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 125.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1139 SDtfs, 3913 SDslu, 934 SDs, 0 SdLazy, 5438 SolverSat, 1270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.6s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1090 GetRequests, 1027 SyntacticMatches, 18 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5029occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 60.5s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9959316183118266 AbsIntWeakeningRatio, 0.09640831758034027 AbsIntAvgWeakeningVarsNumRemoved, 281.8289224952741 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 191 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1371 NumberOfCodeBlocks, 1371 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1365 ConstructedInterpolants, 0 QuantifiedInterpolants, 4851186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 693/1167 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label58_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-43-18-110.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label58_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-43-18-110.csv Completed graceful shutdown