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/Problem16_label33_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:50:57,295 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:50:57,298 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:50:57,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:50:57,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:50:57,316 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:50:57,320 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:50:57,322 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:50:57,323 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:50:57,324 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:50:57,325 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:50:57,326 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:50:57,326 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:50:57,327 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:50:57,328 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:50:57,329 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:50:57,330 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:50:57,332 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:50:57,334 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:50:57,335 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:50:57,336 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:50:57,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:50:57,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:50:57,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:50:57,340 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:50:57,341 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:50:57,342 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:50:57,343 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:50:57,344 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:50:57,345 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:50:57,345 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:50:57,346 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:50:57,346 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:50:57,346 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:50:57,347 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:50:57,348 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:50:57,348 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 19:50:57,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:50:57,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:50:57,372 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:50:57,372 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:50:57,372 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:50:57,372 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:50:57,373 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:50:57,373 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:50:57,373 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:50:57,373 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:50:57,374 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:50:57,374 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:50:57,375 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:50:57,375 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:50:57,375 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:50:57,375 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:50:57,376 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:50:57,376 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:50:57,376 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:50:57,376 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:50:57,378 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:50:57,378 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:50:57,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:50:57,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:50:57,379 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:50:57,379 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:50:57,379 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:50:57,380 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:50:57,380 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:50:57,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:50:57,380 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:50:57,380 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:50:57,381 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:50:57,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:50:57,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:50:57,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:50:57,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:50:57,486 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:50:57,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label33_false-unreach-call.c [2018-07-23 19:50:57,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f17d4f9/1970ad28193d4644a5b0e058b2f21c89/FLAG4817ea166 [2018-07-23 19:50:58,213 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:50:58,216 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label33_false-unreach-call.c [2018-07-23 19:50:58,242 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f17d4f9/1970ad28193d4644a5b0e058b2f21c89/FLAG4817ea166 [2018-07-23 19:50:58,267 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f17d4f9/1970ad28193d4644a5b0e058b2f21c89 [2018-07-23 19:50:58,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:50:58,280 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:50:58,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:50:58,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:50:58,289 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:50:58,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:50:58" (1/1) ... [2018-07-23 19:50:58,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17964469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:58, skipping insertion in model container [2018-07-23 19:50:58,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:50:58" (1/1) ... [2018-07-23 19:50:58,568 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:50:59,121 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:50:59,138 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:50:59,393 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:50:59,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59 WrapperNode [2018-07-23 19:50:59,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:50:59,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:50:59,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:50:59,510 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:50:59,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:50:59,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:50:59,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:50:59,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:50:59,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:50:59,710 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:51:00,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:51:00,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:51:00,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:51:00,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:51:00,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:51:00,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:51:00,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (1/1) ... [2018-07-23 19:51:00,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:51:00,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:51:00,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:51:00,226 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:51:00,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (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 19:51:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:51:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:51:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:51:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:51:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:51:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:51:00,301 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 19:51:00,301 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 19:51:00,301 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 19:51:00,301 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 19:51:07,279 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:51:07,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:51:07 BoogieIcfgContainer [2018-07-23 19:51:07,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:51:07,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:51:07,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:51:07,285 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:51:07,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:50:58" (1/3) ... [2018-07-23 19:51:07,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d004294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:51:07, skipping insertion in model container [2018-07-23 19:51:07,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:50:59" (2/3) ... [2018-07-23 19:51:07,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d004294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:51:07, skipping insertion in model container [2018-07-23 19:51:07,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:51:07" (3/3) ... [2018-07-23 19:51:07,289 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label33_false-unreach-call.c [2018-07-23 19:51:07,297 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:51:07,306 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:51:07,367 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:51:07,368 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:51:07,368 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:51:07,368 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:51:07,368 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:51:07,369 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:51:07,369 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:51:07,369 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:51:07,369 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:51:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-23 19:51:07,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 19:51:07,431 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:51:07,433 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, 1, 1, 1, 1, 1, 1] [2018-07-23 19:51:07,433 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 19:51:07,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1647194412, now seen corresponding path program 1 times [2018-07-23 19:51:07,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:51:07,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:07,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:51:07,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:07,490 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:51:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:51:07,901 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:51:08,016 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 19:51:08,020 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:51:08,021 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:51:08,021 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:51:08,028 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:51:08,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:51:08,046 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:51:08,049 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-07-23 19:51:12,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:51:12,088 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-07-23 19:51:12,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:51:12,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-07-23 19:51:12,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:51:12,127 INFO L225 Difference]: With dead ends: 1156 [2018-07-23 19:51:12,127 INFO L226 Difference]: Without dead ends: 744 [2018-07-23 19:51:12,136 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:51:12,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-07-23 19:51:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-07-23 19:51:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-23 19:51:12,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-07-23 19:51:12,303 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 34 [2018-07-23 19:51:12,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:51:12,304 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-07-23 19:51:12,304 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:51:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-07-23 19:51:12,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 19:51:12,314 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:51:12,315 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, 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] [2018-07-23 19:51:12,315 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 19:51:12,316 INFO L82 PathProgramCache]: Analyzing trace with hash 381457922, now seen corresponding path program 1 times [2018-07-23 19:51:12,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:51:12,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:12,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:51:12,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:12,319 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:51:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:51:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:51:12,659 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:51:12,659 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 19:51:12,660 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:51:12,662 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 19:51:12,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 19:51:12,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 19:51:12,663 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-07-23 19:51:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:51:19,507 INFO L93 Difference]: Finished difference Result 2194 states and 4083 transitions. [2018-07-23 19:51:19,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:51:19,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-07-23 19:51:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:51:19,529 INFO L225 Difference]: With dead ends: 2194 [2018-07-23 19:51:19,530 INFO L226 Difference]: Without dead ends: 1456 [2018-07-23 19:51:19,534 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:51:19,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-07-23 19:51:19,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1436. [2018-07-23 19:51:19,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-07-23 19:51:19,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2550 transitions. [2018-07-23 19:51:19,615 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2550 transitions. Word has length 104 [2018-07-23 19:51:19,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:51:19,616 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 2550 transitions. [2018-07-23 19:51:19,616 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 19:51:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2550 transitions. [2018-07-23 19:51:19,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 19:51:19,626 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:51:19,626 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, 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] [2018-07-23 19:51:19,627 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 19:51:19,627 INFO L82 PathProgramCache]: Analyzing trace with hash 2066335835, now seen corresponding path program 1 times [2018-07-23 19:51:19,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:51:19,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:19,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:51:19,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:19,630 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:51:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:51:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:51:20,099 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:51:20,099 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:51:20,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:51:20,100 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:51:20,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:51:20,101 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:51:20,101 INFO L87 Difference]: Start difference. First operand 1436 states and 2550 transitions. Second operand 6 states. [2018-07-23 19:51:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:51:26,648 INFO L93 Difference]: Finished difference Result 3936 states and 7024 transitions. [2018-07-23 19:51:26,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:51:26,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-07-23 19:51:26,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:51:26,676 INFO L225 Difference]: With dead ends: 3936 [2018-07-23 19:51:26,676 INFO L226 Difference]: Without dead ends: 2506 [2018-07-23 19:51:26,687 INFO L573 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 [2018-07-23 19:51:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2018-07-23 19:51:26,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2479. [2018-07-23 19:51:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-07-23 19:51:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3996 transitions. [2018-07-23 19:51:26,781 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3996 transitions. Word has length 133 [2018-07-23 19:51:26,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:51:26,782 INFO L471 AbstractCegarLoop]: Abstraction has 2479 states and 3996 transitions. [2018-07-23 19:51:26,782 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:51:26,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3996 transitions. [2018-07-23 19:51:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 19:51:26,786 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:51:26,787 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, 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] [2018-07-23 19:51:26,787 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 19:51:26,787 INFO L82 PathProgramCache]: Analyzing trace with hash -732911593, now seen corresponding path program 1 times [2018-07-23 19:51:26,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:51:26,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:26,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:51:26,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:26,789 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:51:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:51:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:51:27,077 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:51:27,077 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:51:27,078 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:51:27,078 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:51:27,079 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:51:27,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:51:27,079 INFO L87 Difference]: Start difference. First operand 2479 states and 3996 transitions. Second operand 6 states. [2018-07-23 19:51:39,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:51:39,105 INFO L93 Difference]: Finished difference Result 8569 states and 14801 transitions. [2018-07-23 19:51:39,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 19:51:39,106 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-07-23 19:51:39,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:51:39,169 INFO L225 Difference]: With dead ends: 8569 [2018-07-23 19:51:39,169 INFO L226 Difference]: Without dead ends: 6096 [2018-07-23 19:51:39,209 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 19:51:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2018-07-23 19:51:39,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 5992. [2018-07-23 19:51:39,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5992 states. [2018-07-23 19:51:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5992 states to 5992 states and 9338 transitions. [2018-07-23 19:51:39,421 INFO L78 Accepts]: Start accepts. Automaton has 5992 states and 9338 transitions. Word has length 151 [2018-07-23 19:51:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:51:39,422 INFO L471 AbstractCegarLoop]: Abstraction has 5992 states and 9338 transitions. [2018-07-23 19:51:39,422 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:51:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5992 states and 9338 transitions. [2018-07-23 19:51:39,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-07-23 19:51:39,431 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:51:39,431 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:39,431 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 19:51:39,432 INFO L82 PathProgramCache]: Analyzing trace with hash 569003040, now seen corresponding path program 1 times [2018-07-23 19:51:39,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:51:39,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:39,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:51:39,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:39,433 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:51:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:51:39,672 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:51:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 54 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 19:51:39,848 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:51:39,848 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:51:39,849 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-07-23 19:51:39,851 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [375], [377], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [708], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [812], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-23 19:51:39,927 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:51:39,928 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:51:44,204 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:51:44,206 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 19:51:44,217 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:51:46,910 INFO L232 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 77.74% of their original sizes. [2018-07-23 19:51:46,910 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:51:47,357 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:51:47,358 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:51:47,358 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 19:51:47,359 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:51:47,359 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 19:51:47,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 19:51:47,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:51:47,360 INFO L87 Difference]: Start difference. First operand 5992 states and 9338 transitions. Second operand 7 states. [2018-07-23 19:51:51,160 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:52:32,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:52:32,623 INFO L93 Difference]: Finished difference Result 12318 states and 19184 transitions. [2018-07-23 19:52:32,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:52:32,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2018-07-23 19:52:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:52:32,660 INFO L225 Difference]: With dead ends: 12318 [2018-07-23 19:52:32,661 INFO L226 Difference]: Without dead ends: 6332 [2018-07-23 19:52:32,695 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 206 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:52:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6332 states. [2018-07-23 19:52:32,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6332 to 6330. [2018-07-23 19:52:32,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6330 states. [2018-07-23 19:52:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6330 states to 6330 states and 9685 transitions. [2018-07-23 19:52:32,865 INFO L78 Accepts]: Start accepts. Automaton has 6330 states and 9685 transitions. Word has length 206 [2018-07-23 19:52:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:52:32,865 INFO L471 AbstractCegarLoop]: Abstraction has 6330 states and 9685 transitions. [2018-07-23 19:52:32,865 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 19:52:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 6330 states and 9685 transitions. [2018-07-23 19:52:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-07-23 19:52:32,872 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:52:32,873 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:32,873 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 19:52:32,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1971373963, now seen corresponding path program 1 times [2018-07-23 19:52:32,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:52:32,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:52:32,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:52:32,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:52:32,875 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:52:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:52:33,211 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:52:33,360 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 55 proven. 22 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-23 19:52:33,360 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:52:33,360 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:52:33,361 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-07-23 19:52:33,361 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [375], [377], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [784], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [884], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-23 19:52:33,367 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:52:33,367 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:52:35,413 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:52:44,052 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:52:44,053 INFO L272 AbstractInterpreter]: Visited 125 different actions 243 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:52:44,062 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:52:49,234 INFO L232 lantSequenceWeakener]: Weakened 241 states. On average, predicates are now at 77.7% of their original sizes. [2018-07-23 19:52:49,234 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:52:50,530 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:52:50,530 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:52:50,531 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-07-23 19:52:50,531 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:52:50,532 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:52:50,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:52:50,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:52:50,533 INFO L87 Difference]: Start difference. First operand 6330 states and 9685 transitions. Second operand 11 states. [2018-07-23 19:54:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:54:07,078 INFO L93 Difference]: Finished difference Result 12998 states and 20053 transitions. [2018-07-23 19:54:07,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 19:54:07,079 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 243 [2018-07-23 19:54:07,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:54:07,117 INFO L225 Difference]: With dead ends: 12998 [2018-07-23 19:54:07,117 INFO L226 Difference]: Without dead ends: 7012 [2018-07-23 19:54:07,144 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 249 GetRequests, 211 SyntacticMatches, 22 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 19:54:07,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2018-07-23 19:54:07,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 7009. [2018-07-23 19:54:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7009 states. [2018-07-23 19:54:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 10380 transitions. [2018-07-23 19:54:07,327 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 10380 transitions. Word has length 243 [2018-07-23 19:54:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:54:07,327 INFO L471 AbstractCegarLoop]: Abstraction has 7009 states and 10380 transitions. [2018-07-23 19:54:07,327 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:54:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 10380 transitions. [2018-07-23 19:54:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-07-23 19:54:07,334 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:54:07,335 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, 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, 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] [2018-07-23 19:54:07,335 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:54:07,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1282727549, now seen corresponding path program 1 times [2018-07-23 19:54:07,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:54:07,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:54:07,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:54:07,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:54:07,336 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:54:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:54:07,804 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-07-23 19:54:08,207 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2018-07-23 19:54:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:54:08,672 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:54:08,672 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:54:08,672 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-07-23 19:54:08,672 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [375], [377], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [884], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [928], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-23 19:54:08,677 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:54:08,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:54:12,473 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:54:21,642 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:54:21,642 INFO L272 AbstractInterpreter]: Visited 136 different actions 265 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:54:21,651 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:54:28,829 INFO L232 lantSequenceWeakener]: Weakened 277 states. On average, predicates are now at 77.65% of their original sizes. [2018-07-23 19:54:28,830 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:54:30,058 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:54:30,059 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:54:30,059 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 22 [2018-07-23 19:54:30,059 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:54:30,060 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:54:30,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:54:30,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:54:30,061 INFO L87 Difference]: Start difference. First operand 7009 states and 10380 transitions. Second operand 11 states. Received shutdown request... [2018-07-23 19:54:50,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 19:54:50,238 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:54:50,242 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:54:50,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:54:50 BoogieIcfgContainer [2018-07-23 19:54:50,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:54:50,244 INFO L168 Benchmark]: Toolchain (without parser) took 231963.99 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 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 919.4 MB. Max. memory is 7.1 GB. [2018-07-23 19:54:50,246 INFO L168 Benchmark]: CDTParser took 0.25 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 19:54:50,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1227.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:54:50,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.56 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:54:50,249 INFO L168 Benchmark]: Boogie Preprocessor took 515.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -981.7 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:54:50,250 INFO L168 Benchmark]: RCFGBuilder took 7054.75 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 290.0 MB). Peak memory consumption was 290.0 MB. Max. memory is 7.1 GB. [2018-07-23 19:54:50,250 INFO L168 Benchmark]: TraceAbstraction took 222961.53 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 636.9 MB. Max. memory is 7.1 GB. [2018-07-23 19:54:50,256 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1227.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 199.56 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 515.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -981.7 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7054.75 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 290.0 MB). Peak memory consumption was 290.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222961.53 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 636.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 88). Cancelled while BasicCegarLoop was constructing difference of abstraction (7009states) and interpolant automaton (currently 13 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (367 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 222.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 171.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1263 SDtfs, 8429 SDslu, 754 SDs, 0 SdLazy, 11335 SolverSat, 2704 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 119.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 775 GetRequests, 667 SyntacticMatches, 48 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7009occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.0s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9953548225887056 AbsIntWeakeningRatio, 0.10758620689655173 AbsIntAvgWeakeningVarsNumRemoved, 271.02206896551724 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 156 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1150 NumberOfCodeBlocks, 1150 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1143 ConstructedInterpolants, 0 QuantifiedInterpolants, 1835925 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 433/525 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/Problem16_label33_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-54-50-270.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label33_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-54-50-270.csv Completed graceful shutdown