java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label07_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 04:07:26,198 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 04:07:26,201 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 04:07:26,215 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 04:07:26,215 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 04:07:26,217 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 04:07:26,218 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 04:07:26,222 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 04:07:26,225 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 04:07:26,226 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 04:07:26,227 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 04:07:26,227 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 04:07:26,228 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 04:07:26,231 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 04:07:26,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 04:07:26,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 04:07:26,235 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 04:07:26,246 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 04:07:26,248 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 04:07:26,249 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 04:07:26,250 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 04:07:26,251 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 04:07:26,255 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 04:07:26,256 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 04:07:26,256 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 04:07:26,257 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 04:07:26,258 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 04:07:26,260 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 04:07:26,261 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 04:07:26,262 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 04:07:26,262 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 04:07:26,267 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 04:07:26,268 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 04:07:26,268 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 04:07:26,269 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 04:07:26,270 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 04:07:26,270 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 04:07:26,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 04:07:26,300 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 04:07:26,300 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 04:07:26,300 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 04:07:26,301 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 04:07:26,301 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 04:07:26,301 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 04:07:26,301 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 04:07:26,301 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 04:07:26,302 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 04:07:26,302 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 04:07:26,302 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 04:07:26,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 04:07:26,305 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 04:07:26,305 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 04:07:26,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 04:07:26,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 04:07:26,306 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 04:07:26,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 04:07:26,306 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 04:07:26,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 04:07:26,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 04:07:26,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 04:07:26,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 04:07:26,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 04:07:26,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 04:07:26,308 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 04:07:26,308 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 04:07:26,308 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 04:07:26,308 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 04:07:26,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 04:07:26,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 04:07:26,310 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 04:07:26,310 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 04:07:26,311 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 04:07:26,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 04:07:26,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 04:07:26,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 04:07:26,379 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 04:07:26,380 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 04:07:26,381 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label07_false-unreach-call.c [2018-07-21 04:07:26,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ff15718ae/ff3cd08fe89549d480d1ded97cde63f8/FLAGa39d954cf [2018-07-21 04:07:27,273 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 04:07:27,274 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label07_false-unreach-call.c [2018-07-21 04:07:27,306 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ff15718ae/ff3cd08fe89549d480d1ded97cde63f8/FLAGa39d954cf [2018-07-21 04:07:27,525 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ff15718ae/ff3cd08fe89549d480d1ded97cde63f8 [2018-07-21 04:07:27,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 04:07:27,539 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 04:07:27,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 04:07:27,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 04:07:27,547 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 04:07:27,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:07:27" (1/1) ... [2018-07-21 04:07:27,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67aa9cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:27, skipping insertion in model container [2018-07-21 04:07:27,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:07:27" (1/1) ... [2018-07-21 04:07:27,839 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 04:07:28,627 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:07:28,651 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 04:07:29,109 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:07:29,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29 WrapperNode [2018-07-21 04:07:29,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 04:07:29,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 04:07:29,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 04:07:29,233 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 04:07:29,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:29,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:29,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 04:07:29,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 04:07:29,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 04:07:29,500 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 04:07:29,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:29,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:29,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:29,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:29,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:30,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:30,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... [2018-07-21 04:07:30,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 04:07:30,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 04:07:30,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 04:07:30,272 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 04:07:30,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 04:07:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 04:07:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 04:07:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 04:07:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 04:07:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 04:07:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 04:07:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 04:07:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 04:07:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 04:07:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 04:07:40,485 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 04:07:40,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:07:40 BoogieIcfgContainer [2018-07-21 04:07:40,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 04:07:40,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 04:07:40,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 04:07:40,490 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 04:07:40,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:07:27" (1/3) ... [2018-07-21 04:07:40,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9171fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:07:40, skipping insertion in model container [2018-07-21 04:07:40,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:29" (2/3) ... [2018-07-21 04:07:40,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9171fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:07:40, skipping insertion in model container [2018-07-21 04:07:40,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:07:40" (3/3) ... [2018-07-21 04:07:40,493 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label07_false-unreach-call.c [2018-07-21 04:07:40,502 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 04:07:40,511 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 04:07:40,571 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 04:07:40,571 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 04:07:40,572 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 04:07:40,572 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 04:07:40,572 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 04:07:40,572 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 04:07:40,572 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 04:07:40,572 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 04:07:40,573 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 04:07:40,618 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-21 04:07:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-21 04:07:40,623 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:07:40,625 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:07:40,625 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:07:40,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1980431321, now seen corresponding path program 1 times [2018-07-21 04:07:40,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:07:40,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:07:40,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:07:40,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:07:40,689 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:07:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:07:41,030 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 04:07:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:07:41,138 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:07:41,138 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 04:07:41,139 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:07:41,142 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 04:07:41,157 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 04:07:41,158 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:07:41,161 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-07-21 04:07:44,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:07:44,735 INFO L93 Difference]: Finished difference Result 1194 states and 2152 transitions. [2018-07-21 04:07:44,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 04:07:44,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-07-21 04:07:44,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:07:44,767 INFO L225 Difference]: With dead ends: 1194 [2018-07-21 04:07:44,768 INFO L226 Difference]: Without dead ends: 754 [2018-07-21 04:07:44,777 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:07:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2018-07-21 04:07:44,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 752. [2018-07-21 04:07:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-07-21 04:07:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1325 transitions. [2018-07-21 04:07:44,933 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1325 transitions. Word has length 17 [2018-07-21 04:07:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:07:44,934 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1325 transitions. [2018-07-21 04:07:44,934 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 04:07:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1325 transitions. [2018-07-21 04:07:44,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-21 04:07:44,940 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:07:44,940 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 04:07:44,941 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:07:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash 509618197, now seen corresponding path program 1 times [2018-07-21 04:07:44,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:07:44,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:07:44,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:07:44,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:07:44,943 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:07:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:07:45,370 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:07:45,371 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:07:45,371 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 04:07:45,371 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:07:45,373 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 04:07:45,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 04:07:45,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 04:07:45,374 INFO L87 Difference]: Start difference. First operand 752 states and 1325 transitions. Second operand 6 states. [2018-07-21 04:07:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:07:55,133 INFO L93 Difference]: Finished difference Result 2226 states and 3957 transitions. [2018-07-21 04:07:55,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 04:07:55,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-07-21 04:07:55,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:07:55,153 INFO L225 Difference]: With dead ends: 2226 [2018-07-21 04:07:55,154 INFO L226 Difference]: Without dead ends: 1480 [2018-07-21 04:07:55,158 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 04:07:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2018-07-21 04:07:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1448. [2018-07-21 04:07:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2018-07-21 04:07:55,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2240 transitions. [2018-07-21 04:07:55,292 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2240 transitions. Word has length 91 [2018-07-21 04:07:55,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:07:55,293 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2240 transitions. [2018-07-21 04:07:55,293 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 04:07:55,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2240 transitions. [2018-07-21 04:07:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-21 04:07:55,297 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:07:55,298 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 04:07:55,298 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:07:55,298 INFO L82 PathProgramCache]: Analyzing trace with hash -926236922, now seen corresponding path program 1 times [2018-07-21 04:07:55,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:07:55,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:07:55,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:07:55,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:07:55,300 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:07:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:07:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:07:55,789 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:07:55,790 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 04:07:55,791 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:07:55,792 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 04:07:55,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 04:07:55,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 04:07:55,793 INFO L87 Difference]: Start difference. First operand 1448 states and 2240 transitions. Second operand 6 states. [2018-07-21 04:08:04,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:08:04,440 INFO L93 Difference]: Finished difference Result 4174 states and 6572 transitions. [2018-07-21 04:08:04,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:08:04,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-21 04:08:04,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:08:04,524 INFO L225 Difference]: With dead ends: 4174 [2018-07-21 04:08:04,524 INFO L226 Difference]: Without dead ends: 2732 [2018-07-21 04:08:04,534 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 04:08:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2018-07-21 04:08:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2667. [2018-07-21 04:08:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2667 states. [2018-07-21 04:08:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3774 transitions. [2018-07-21 04:08:04,661 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3774 transitions. Word has length 104 [2018-07-21 04:08:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:08:04,661 INFO L471 AbstractCegarLoop]: Abstraction has 2667 states and 3774 transitions. [2018-07-21 04:08:04,662 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 04:08:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3774 transitions. [2018-07-21 04:08:04,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-21 04:08:04,670 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:08:04,670 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 04:08:04,670 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:08:04,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1947747229, now seen corresponding path program 1 times [2018-07-21 04:08:04,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:08:04,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:04,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:08:04,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:04,673 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:08:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:08:04,906 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:08:04,906 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:08:04,906 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 04:08:04,906 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:08:04,907 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 04:08:04,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 04:08:04,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 04:08:04,907 INFO L87 Difference]: Start difference. First operand 2667 states and 3774 transitions. Second operand 5 states. [2018-07-21 04:08:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:08:21,441 INFO L93 Difference]: Finished difference Result 9745 states and 14084 transitions. [2018-07-21 04:08:21,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 04:08:21,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-07-21 04:08:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:08:21,488 INFO L225 Difference]: With dead ends: 9745 [2018-07-21 04:08:21,489 INFO L226 Difference]: Without dead ends: 7084 [2018-07-21 04:08:21,508 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 04:08:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2018-07-21 04:08:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 6956. [2018-07-21 04:08:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6956 states. [2018-07-21 04:08:21,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 9222 transitions. [2018-07-21 04:08:21,815 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 9222 transitions. Word has length 114 [2018-07-21 04:08:21,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:08:21,815 INFO L471 AbstractCegarLoop]: Abstraction has 6956 states and 9222 transitions. [2018-07-21 04:08:21,815 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 04:08:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 9222 transitions. [2018-07-21 04:08:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-21 04:08:21,819 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:08:21,822 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 04:08:21,822 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:08:21,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1836476886, now seen corresponding path program 1 times [2018-07-21 04:08:21,823 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:08:21,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:21,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:08:21,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:21,824 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:08:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:08:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:08:22,231 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 04:08:22,231 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 04:08:22,232 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-07-21 04:08:22,234 INFO L201 CegarAbsIntRunner]: [0], [1], [77], [81], [87], [91], [93], [98], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [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] [2018-07-21 04:08:22,295 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 04:08:22,296 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 04:08:32,368 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 04:08:35,523 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 04:08:35,525 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 04:08:35,568 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 04:08:42,275 INFO L232 lantSequenceWeakener]: Weakened 124 states. On average, predicates are now at 77.34% of their original sizes. [2018-07-21 04:08:42,276 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 04:08:42,954 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 04:08:42,955 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 04:08:42,956 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-07-21 04:08:42,956 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:08:42,957 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 04:08:42,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 04:08:42,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 04:08:42,957 INFO L87 Difference]: Start difference. First operand 6956 states and 9222 transitions. Second operand 8 states. Received shutdown request... [2018-07-21 04:10:56,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 04:10:56,273 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 04:10:56,279 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 04:10:56,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:10:56 BoogieIcfgContainer [2018-07-21 04:10:56,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 04:10:56,280 INFO L168 Benchmark]: Toolchain (without parser) took 208746.40 ms. Allocated memory was 306.2 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 246.5 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. [2018-07-21 04:10:56,282 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 306.2 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 04:10:56,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1691.76 ms. Allocated memory was 306.2 MB in the beginning and 332.9 MB in the end (delta: 26.7 MB). Free memory was 246.5 MB in the beginning and 237.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 72.0 MB. Max. memory is 5.3 GB. [2018-07-21 04:10:56,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 267.21 ms. Allocated memory is still 332.9 MB. Free memory was 237.0 MB in the beginning and 198.4 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 5.3 GB. [2018-07-21 04:10:56,284 INFO L168 Benchmark]: Boogie Preprocessor took 771.35 ms. Allocated memory was 332.9 MB in the beginning and 576.7 MB in the end (delta: 243.8 MB). Free memory was 198.4 MB in the beginning and 508.0 MB in the end (delta: -309.6 MB). Peak memory consumption was 55.9 MB. Max. memory is 5.3 GB. [2018-07-21 04:10:56,285 INFO L168 Benchmark]: RCFGBuilder took 10214.88 ms. Allocated memory was 576.7 MB in the beginning and 585.6 MB in the end (delta: 8.9 MB). Free memory was 508.0 MB in the beginning and 385.8 MB in the end (delta: 122.2 MB). Peak memory consumption was 200.7 MB. Max. memory is 5.3 GB. [2018-07-21 04:10:56,286 INFO L168 Benchmark]: TraceAbstraction took 195792.32 ms. Allocated memory was 585.6 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 385.8 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 893.9 MB. Max. memory is 5.3 GB. [2018-07-21 04:10:56,299 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 306.2 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1691.76 ms. Allocated memory was 306.2 MB in the beginning and 332.9 MB in the end (delta: 26.7 MB). Free memory was 246.5 MB in the beginning and 237.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 72.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 267.21 ms. Allocated memory is still 332.9 MB. Free memory was 237.0 MB in the beginning and 198.4 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 771.35 ms. Allocated memory was 332.9 MB in the beginning and 576.7 MB in the end (delta: 243.8 MB). Free memory was 198.4 MB in the beginning and 508.0 MB in the end (delta: -309.6 MB). Peak memory consumption was 55.9 MB. Max. memory is 5.3 GB. * RCFGBuilder took 10214.88 ms. Allocated memory was 576.7 MB in the beginning and 585.6 MB in the end (delta: 8.9 MB). Free memory was 508.0 MB in the beginning and 385.8 MB in the end (delta: 122.2 MB). Peak memory consumption was 200.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 195792.32 ms. Allocated memory was 585.6 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 385.8 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 893.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (6956states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (12611 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 195.7s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 172.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1117 SDtfs, 5457 SDslu, 1392 SDs, 0 SdLazy, 10916 SolverSat, 2175 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 131.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 164 GetRequests, 133 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6956occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9934471240942028 AbsIntWeakeningRatio, 0.15625 AbsIntAvgWeakeningVarsNumRemoved, 50.6875 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 227 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 189789 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 30/40 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem15_label07_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_04-10-56-324.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem15_label07_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_04-10-56-324.csv Completed graceful shutdown