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/Problem15_label29_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:43:04,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:43:04,340 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:43:04,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:43:04,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:43:04,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:43:04,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:43:04,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:43:04,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:43:04,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:43:04,361 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:43:04,361 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:43:04,362 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:43:04,363 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:43:04,366 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:43:04,368 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:43:04,369 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:43:04,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:43:04,378 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:43:04,382 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:43:04,383 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:43:04,385 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:43:04,388 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:43:04,388 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:43:04,390 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:43:04,391 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:43:04,392 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:43:04,392 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:43:04,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:43:04,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:43:04,397 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:43:04,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:43:04,398 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:43:04,399 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:43:04,402 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:43:04,402 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:43:04,403 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 19:43:04,428 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:43:04,428 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:43:04,431 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:43:04,432 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:43:04,432 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:43:04,432 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:43:04,432 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:43:04,432 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:43:04,433 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:43:04,433 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:43:04,433 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:43:04,434 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:43:04,434 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:43:04,434 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:43:04,434 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:43:04,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:43:04,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:43:04,435 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:43:04,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:43:04,435 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:43:04,435 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:43:04,435 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:43:04,436 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:43:04,436 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:43:04,436 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:43:04,436 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:43:04,436 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:43:04,437 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:43:04,437 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:43:04,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:43:04,437 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:43:04,437 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:43:04,438 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:43:04,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:43:04,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:43:04,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:43:04,501 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:43:04,501 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:43:04,502 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label29_false-unreach-call.c [2018-07-23 19:43:04,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6930043c5/f07d5b547c1e4d8c86b9f25d7ced09f2/FLAG3a5f0fc42 [2018-07-23 19:43:05,208 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:43:05,209 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label29_false-unreach-call.c [2018-07-23 19:43:05,234 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6930043c5/f07d5b547c1e4d8c86b9f25d7ced09f2/FLAG3a5f0fc42 [2018-07-23 19:43:05,256 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6930043c5/f07d5b547c1e4d8c86b9f25d7ced09f2 [2018-07-23 19:43:05,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:43:05,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:43:05,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:43:05,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:43:05,277 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:43:05,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:43:05" (1/1) ... [2018-07-23 19:43:05,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8b2370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:05, skipping insertion in model container [2018-07-23 19:43:05,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:43:05" (1/1) ... [2018-07-23 19:43:05,534 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:43:06,169 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:43:06,190 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:43:06,822 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:43:06,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06 WrapperNode [2018-07-23 19:43:06,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:43:06,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:43:06,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:43:06,954 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:43:06,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:43:07,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:43:07,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:43:07,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:43:07,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (1/1) ... [2018-07-23 19:43:07,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:43:07,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:43:07,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:43:07,934 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:43:07,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (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 19:43:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:43:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:43:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:43:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:43:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:43:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:43:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:43:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:43:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:43:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:43:15,878 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:43:15,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:43:15 BoogieIcfgContainer [2018-07-23 19:43:15,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:43:15,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:43:15,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:43:15,884 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:43:15,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:43:05" (1/3) ... [2018-07-23 19:43:15,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b5a51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:43:15, skipping insertion in model container [2018-07-23 19:43:15,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:06" (2/3) ... [2018-07-23 19:43:15,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b5a51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:43:15, skipping insertion in model container [2018-07-23 19:43:15,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:43:15" (3/3) ... [2018-07-23 19:43:15,888 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label29_false-unreach-call.c [2018-07-23 19:43:15,898 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:43:15,907 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:43:15,970 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:43:15,971 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:43:15,971 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:43:15,971 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:43:15,971 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:43:15,972 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:43:15,972 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:43:15,972 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:43:15,972 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:43:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-23 19:43:16,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 19:43:16,020 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:16,022 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, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:43:16,022 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:16,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2000297436, now seen corresponding path program 1 times [2018-07-23 19:43:16,031 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:16,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:16,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:16,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:16,084 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:16,494 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 19:43:16,499 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:43:16,499 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:43:16,499 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:16,510 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:43:16,527 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:43:16,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:43:16,531 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-07-23 19:43:25,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:43:25,844 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-07-23 19:43:25,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:43:25,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-07-23 19:43:25,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:43:25,877 INFO L225 Difference]: With dead ends: 1550 [2018-07-23 19:43:25,877 INFO L226 Difference]: Without dead ends: 1106 [2018-07-23 19:43:25,890 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:43:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-07-23 19:43:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-07-23 19:43:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-07-23 19:43:26,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-07-23 19:43:26,019 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 28 [2018-07-23 19:43:26,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:43:26,020 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-07-23 19:43:26,020 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:43:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-07-23 19:43:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 19:43:26,026 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:26,026 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:43:26,026 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:26,027 INFO L82 PathProgramCache]: Analyzing trace with hash 217765290, now seen corresponding path program 1 times [2018-07-23 19:43:26,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:26,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:26,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:26,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:26,029 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:43:26,334 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:43:26,334 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:43:26,335 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:26,337 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:43:26,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:43:26,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:43:26,337 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 6 states. [2018-07-23 19:43:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:43:37,211 INFO L93 Difference]: Finished difference Result 2247 states and 3761 transitions. [2018-07-23 19:43:37,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 19:43:37,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-07-23 19:43:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:43:37,228 INFO L225 Difference]: With dead ends: 2247 [2018-07-23 19:43:37,229 INFO L226 Difference]: Without dead ends: 1491 [2018-07-23 19:43:37,234 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 19:43:37,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2018-07-23 19:43:37,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1457. [2018-07-23 19:43:37,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-07-23 19:43:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-07-23 19:43:37,320 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 101 [2018-07-23 19:43:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:43:37,321 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-07-23 19:43:37,321 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:43:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-07-23 19:43:37,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 19:43:37,328 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:37,328 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:43:37,329 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:37,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1630252698, now seen corresponding path program 1 times [2018-07-23 19:43:37,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:37,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:37,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:37,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:37,331 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:43:37,498 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:43:37,498 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:43:37,499 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:37,499 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:43:37,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:43:37,500 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:43:37,500 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-07-23 19:43:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:43:45,226 INFO L93 Difference]: Finished difference Result 5405 states and 8310 transitions. [2018-07-23 19:43:45,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:43:45,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2018-07-23 19:43:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:43:45,259 INFO L225 Difference]: With dead ends: 5405 [2018-07-23 19:43:45,259 INFO L226 Difference]: Without dead ends: 3954 [2018-07-23 19:43:45,274 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 19:43:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2018-07-23 19:43:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3951. [2018-07-23 19:43:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3951 states. [2018-07-23 19:43:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 5460 transitions. [2018-07-23 19:43:45,406 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 5460 transitions. Word has length 109 [2018-07-23 19:43:45,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:43:45,407 INFO L471 AbstractCegarLoop]: Abstraction has 3951 states and 5460 transitions. [2018-07-23 19:43:45,407 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:43:45,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 5460 transitions. [2018-07-23 19:43:45,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 19:43:45,416 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:45,416 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:43:45,416 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:45,419 INFO L82 PathProgramCache]: Analyzing trace with hash 2021537488, now seen corresponding path program 1 times [2018-07-23 19:43:45,419 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:45,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:45,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:45,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:45,421 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:43:45,691 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:43:45,691 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:43:45,691 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:45,692 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:43:45,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:43:45,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:43:45,692 INFO L87 Difference]: Start difference. First operand 3951 states and 5460 transitions. Second operand 6 states. [2018-07-23 19:43:51,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:43:51,437 INFO L93 Difference]: Finished difference Result 9149 states and 12436 transitions. [2018-07-23 19:43:51,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:43:51,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-07-23 19:43:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:43:51,471 INFO L225 Difference]: With dead ends: 9149 [2018-07-23 19:43:51,471 INFO L226 Difference]: Without dead ends: 5204 [2018-07-23 19:43:51,497 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:43:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2018-07-23 19:43:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 5146. [2018-07-23 19:43:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5146 states. [2018-07-23 19:43:51,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 6609 transitions. [2018-07-23 19:43:51,672 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 6609 transitions. Word has length 115 [2018-07-23 19:43:51,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:43:51,673 INFO L471 AbstractCegarLoop]: Abstraction has 5146 states and 6609 transitions. [2018-07-23 19:43:51,673 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:43:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 6609 transitions. [2018-07-23 19:43:51,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 19:43:51,675 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:51,676 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:43:51,676 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:51,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1765322910, now seen corresponding path program 1 times [2018-07-23 19:43:51,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:51,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:51,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:51,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:51,678 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:43:52,489 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:43:52,489 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:43:52,491 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-07-23 19:43:52,494 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [98], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [665], [669], [673], [677], [681], [692], [696], [700], [704], [708], [712], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [786], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-23 19:43:52,606 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:43:52,607 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:44:00,037 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:44:00,039 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 19:44:00,049 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:44:03,169 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 77.71% of their original sizes. [2018-07-23 19:44:03,169 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:44:03,657 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:44:03,658 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:44:03,658 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-07-23 19:44:03,658 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:44:03,659 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 19:44:03,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 19:44:03,659 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:44:03,660 INFO L87 Difference]: Start difference. First operand 5146 states and 6609 transitions. Second operand 8 states. [2018-07-23 19:44:10,039 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:45:36,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:45:36,659 INFO L93 Difference]: Finished difference Result 10596 states and 13576 transitions. [2018-07-23 19:45:36,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:45:36,659 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 140 [2018-07-23 19:45:36,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:45:36,682 INFO L225 Difference]: With dead ends: 10596 [2018-07-23 19:45:36,682 INFO L226 Difference]: Without dead ends: 5456 [2018-07-23 19:45:36,695 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 19:45:36,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2018-07-23 19:45:36,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5454. [2018-07-23 19:45:36,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5454 states. [2018-07-23 19:45:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 6926 transitions. [2018-07-23 19:45:36,814 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 6926 transitions. Word has length 140 [2018-07-23 19:45:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:45:36,815 INFO L471 AbstractCegarLoop]: Abstraction has 5454 states and 6926 transitions. [2018-07-23 19:45:36,815 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 19:45:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 6926 transitions. [2018-07-23 19:45:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-07-23 19:45:36,818 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:45:36,818 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 19:45:36,819 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:45:36,819 INFO L82 PathProgramCache]: Analyzing trace with hash -618780793, now seen corresponding path program 1 times [2018-07-23 19:45:36,819 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:45:36,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:45:36,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:45:36,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:45:36,821 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:45:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:45:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 49 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:45:37,555 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:45:37,556 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:45:37,556 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-07-23 19:45:37,556 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [98], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [665], [669], [673], [677], [681], [692], [696], [700], [704], [708], [712], [715], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [786], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-23 19:45:37,563 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:45:37,563 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:45:42,356 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:46:00,497 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:46:00,497 INFO L272 AbstractInterpreter]: Visited 120 different actions 461 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:46:00,505 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:46:02,850 INFO L232 lantSequenceWeakener]: Weakened 234 states. On average, predicates are now at 77.6% of their original sizes. [2018-07-23 19:46:02,850 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:46:03,932 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:46:03,933 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:46:03,933 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 21 [2018-07-23 19:46:03,933 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:46:03,934 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 19:46:03,935 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 19:46:03,935 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 19:46:03,935 INFO L87 Difference]: Start difference. First operand 5454 states and 6926 transitions. Second operand 12 states. Received shutdown request... [2018-07-23 19:46:55,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 19:46:55,553 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:46:55,560 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:46:55,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:46:55 BoogieIcfgContainer [2018-07-23 19:46:55,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:46:55,562 INFO L168 Benchmark]: Toolchain (without parser) took 230294.26 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-23 19:46:55,564 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 19:46:55,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1682.94 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-23 19:46:55,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 279.18 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: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-07-23 19:46:55,566 INFO L168 Benchmark]: Boogie Preprocessor took 700.62 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:46:55,567 INFO L168 Benchmark]: RCFGBuilder took 7946.14 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 324.3 MB). Peak memory consumption was 324.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:46:55,568 INFO L168 Benchmark]: TraceAbstraction took 219680.34 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -552.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-23 19:46:55,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1682.94 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 279.18 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: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 700.62 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7946.14 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 324.3 MB). Peak memory consumption was 324.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219680.34 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -552.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 70). Cancelled while BasicCegarLoop was constructing difference of abstraction (5454states) and interpolant automaton (currently 16 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (1944 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 219.6s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 178.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1503 SDtfs, 7411 SDslu, 1484 SDs, 0 SdLazy, 11219 SolverSat, 2058 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 118.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 418 GetRequests, 354 SyntacticMatches, 17 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5454occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 30.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9946039680694412 AbsIntWeakeningRatio, 0.12299465240641712 AbsIntAvgWeakeningVarsNumRemoved, 677.4385026737968 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 441 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 723 ConstructedInterpolants, 0 QuantifiedInterpolants, 1056155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 112/222 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/Problem15_label29_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-46-55-588.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label29_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-46-55-588.csv Completed graceful shutdown