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/Problem18_label57_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:06:46,214 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:06:46,216 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:06:46,228 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:06:46,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:06:46,229 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:06:46,231 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:06:46,234 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:06:46,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:06:46,238 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:06:46,239 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:06:46,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:06:46,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:06:46,243 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:06:46,245 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:06:46,246 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:06:46,247 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:06:46,251 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:06:46,256 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:06:46,257 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:06:46,260 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:06:46,262 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:06:46,265 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:06:46,266 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:06:46,266 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:06:46,268 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:06:46,269 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:06:46,270 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:06:46,271 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:06:46,273 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:06:46,273 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:06:46,274 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:06:46,274 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:06:46,274 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:06:46,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:06:46,277 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:06:46,278 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 20:06:46,304 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:06:46,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:06:46,305 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:06:46,305 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:06:46,306 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:06:46,306 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:06:46,306 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:06:46,306 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:06:46,307 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:06:46,307 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:06:46,307 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:06:46,308 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:06:46,308 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:06:46,308 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:06:46,308 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:06:46,309 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:06:46,309 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:06:46,309 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:06:46,309 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:06:46,309 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:06:46,310 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:06:46,310 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:06:46,310 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:06:46,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:06:46,310 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:06:46,311 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:06:46,311 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:06:46,311 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:06:46,311 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:06:46,312 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:06:46,312 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:06:46,312 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:06:46,312 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:06:46,372 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:06:46,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:06:46,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:06:46,397 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:06:46,398 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:06:46,399 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label57_false-unreach-call.c [2018-07-23 20:06:46,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da30aa0a8/e3bbe6b30da24bf3a4fe95795b3e1be5/FLAG87e9aaee2 [2018-07-23 20:06:47,224 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:06:47,225 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label57_false-unreach-call.c [2018-07-23 20:06:47,260 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da30aa0a8/e3bbe6b30da24bf3a4fe95795b3e1be5/FLAG87e9aaee2 [2018-07-23 20:06:47,277 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da30aa0a8/e3bbe6b30da24bf3a4fe95795b3e1be5 [2018-07-23 20:06:47,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:06:47,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:06:47,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:06:47,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:06:47,299 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:06:47,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:06:47" (1/1) ... [2018-07-23 20:06:47,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec34fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:47, skipping insertion in model container [2018-07-23 20:06:47,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:06:47" (1/1) ... [2018-07-23 20:06:47,656 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:06:48,575 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:06:48,601 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:06:49,124 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:06:49,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49 WrapperNode [2018-07-23 20:06:49,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:06:49,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:06:49,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:06:49,291 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:06:49,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:49,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:49,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:06:49,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:06:49,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:06:49,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:06:49,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:49,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:49,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:49,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:50,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:50,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:50,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (1/1) ... [2018-07-23 20:06:50,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:06:50,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:06:50,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:06:50,214 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:06:50,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (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 20:06:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:06:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:06:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:06:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:06:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:06:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:06:50,290 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 20:06:50,290 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 20:06:50,291 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_output3 [2018-07-23 20:06:50,291 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_output3 [2018-07-23 20:06:50,291 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 20:06:50,293 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 20:07:00,086 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:07:00,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:07:00 BoogieIcfgContainer [2018-07-23 20:07:00,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:07:00,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:07:00,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:07:00,093 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:07:00,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:06:47" (1/3) ... [2018-07-23 20:07:00,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c962c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:07:00, skipping insertion in model container [2018-07-23 20:07:00,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:06:49" (2/3) ... [2018-07-23 20:07:00,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c962c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:07:00, skipping insertion in model container [2018-07-23 20:07:00,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:07:00" (3/3) ... [2018-07-23 20:07:00,098 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label57_false-unreach-call.c [2018-07-23 20:07:00,107 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:07:00,116 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:07:00,178 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:07:00,179 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:07:00,179 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:07:00,179 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:07:00,179 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:07:00,179 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:07:00,179 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:07:00,180 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:07:00,180 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:07:00,223 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-23 20:07:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 20:07:00,231 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:07:00,232 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:07:00,232 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 20:07:00,239 INFO L82 PathProgramCache]: Analyzing trace with hash -992581633, now seen corresponding path program 1 times [2018-07-23 20:07:00,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:07:00,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:00,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:07:00,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:00,295 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:07:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:07:00,633 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 20:07:00,637 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:07:00,638 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 20:07:00,638 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:07:00,645 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 20:07:00,663 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 20:07:00,664 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:07:00,669 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-07-23 20:07:12,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:07:12,655 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-07-23 20:07:12,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:07:12,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-07-23 20:07:12,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:07:12,701 INFO L225 Difference]: With dead ends: 2974 [2018-07-23 20:07:12,702 INFO L226 Difference]: Without dead ends: 2193 [2018-07-23 20:07:12,718 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:07:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-07-23 20:07:12,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-07-23 20:07:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-07-23 20:07:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3677 transitions. [2018-07-23 20:07:13,005 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3677 transitions. Word has length 15 [2018-07-23 20:07:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:07:13,006 INFO L471 AbstractCegarLoop]: Abstraction has 2193 states and 3677 transitions. [2018-07-23 20:07:13,006 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 20:07:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3677 transitions. [2018-07-23 20:07:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 20:07:13,011 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:07:13,011 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:07:13,012 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 20:07:13,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1668998352, now seen corresponding path program 1 times [2018-07-23 20:07:13,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:07:13,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:13,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:07:13,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:13,014 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:07:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:07:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:07:13,283 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:07:13,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 20:07:13,284 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:07:13,286 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 20:07:13,286 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 20:07:13,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:07:13,287 INFO L87 Difference]: Start difference. First operand 2193 states and 3677 transitions. Second operand 5 states. [2018-07-23 20:07:24,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:07:24,413 INFO L93 Difference]: Finished difference Result 6600 states and 11248 transitions. [2018-07-23 20:07:24,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:07:24,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-07-23 20:07:24,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:07:24,453 INFO L225 Difference]: With dead ends: 6600 [2018-07-23 20:07:24,453 INFO L226 Difference]: Without dead ends: 4413 [2018-07-23 20:07:24,462 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 20:07:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-07-23 20:07:24,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-07-23 20:07:24,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-07-23 20:07:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6986 transitions. [2018-07-23 20:07:24,650 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6986 transitions. Word has length 85 [2018-07-23 20:07:24,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:07:24,651 INFO L471 AbstractCegarLoop]: Abstraction has 4378 states and 6986 transitions. [2018-07-23 20:07:24,651 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 20:07:24,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6986 transitions. [2018-07-23 20:07:24,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-23 20:07:24,662 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:07:24,662 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:07:24,662 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 20:07:24,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1397112335, now seen corresponding path program 1 times [2018-07-23 20:07:24,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:07:24,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:24,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:07:24,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:24,665 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:07:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:07:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:07:25,242 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:07:25,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:07:25,242 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:07:25,243 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:07:25,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:07:25,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:07:25,248 INFO L87 Difference]: Start difference. First operand 4378 states and 6986 transitions. Second operand 6 states. [2018-07-23 20:07:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:07:31,282 INFO L93 Difference]: Finished difference Result 11002 states and 17598 transitions. [2018-07-23 20:07:31,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:07:31,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-07-23 20:07:31,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:07:31,324 INFO L225 Difference]: With dead ends: 11002 [2018-07-23 20:07:31,324 INFO L226 Difference]: Without dead ends: 6630 [2018-07-23 20:07:31,342 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:07:31,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2018-07-23 20:07:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 6590. [2018-07-23 20:07:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-07-23 20:07:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 9022 transitions. [2018-07-23 20:07:31,532 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 9022 transitions. Word has length 112 [2018-07-23 20:07:31,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:07:31,533 INFO L471 AbstractCegarLoop]: Abstraction has 6590 states and 9022 transitions. [2018-07-23 20:07:31,533 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:07:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 9022 transitions. [2018-07-23 20:07:31,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-07-23 20:07:31,547 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:07:31,550 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:31,551 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 20:07:31,551 INFO L82 PathProgramCache]: Analyzing trace with hash 232374966, now seen corresponding path program 1 times [2018-07-23 20:07:31,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:07:31,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:31,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:07:31,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:31,552 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:07:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:07:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-23 20:07:31,777 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:07:31,777 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:07:31,777 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:07:31,778 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:07:31,778 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:07:31,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:07:31,779 INFO L87 Difference]: Start difference. First operand 6590 states and 9022 transitions. Second operand 3 states. [2018-07-23 20:07:36,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:07:36,685 INFO L93 Difference]: Finished difference Result 19574 states and 27307 transitions. [2018-07-23 20:07:36,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:07:36,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2018-07-23 20:07:36,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:07:36,743 INFO L225 Difference]: With dead ends: 19574 [2018-07-23 20:07:36,743 INFO L226 Difference]: Without dead ends: 12990 [2018-07-23 20:07:36,773 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:07:36,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2018-07-23 20:07:37,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 12990. [2018-07-23 20:07:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12990 states. [2018-07-23 20:07:37,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12990 states to 12990 states and 16354 transitions. [2018-07-23 20:07:37,073 INFO L78 Accepts]: Start accepts. Automaton has 12990 states and 16354 transitions. Word has length 192 [2018-07-23 20:07:37,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:07:37,074 INFO L471 AbstractCegarLoop]: Abstraction has 12990 states and 16354 transitions. [2018-07-23 20:07:37,074 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:07:37,074 INFO L276 IsEmpty]: Start isEmpty. Operand 12990 states and 16354 transitions. [2018-07-23 20:07:37,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-07-23 20:07:37,080 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:07:37,080 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:37,080 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 20:07:37,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1412185813, now seen corresponding path program 1 times [2018-07-23 20:07:37,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:07:37,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:37,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:07:37,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:37,082 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:07:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:07:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:07:37,667 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:07:37,667 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:07:37,668 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-07-23 20:07:37,671 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1667], [1669], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2248], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2352], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:07:37,756 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:07:37,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:07:44,859 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:07:44,861 INFO L272 AbstractInterpreter]: Visited 128 different actions 128 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 20:07:44,883 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:07:48,844 INFO L232 lantSequenceWeakener]: Weakened 227 states. On average, predicates are now at 77.3% of their original sizes. [2018-07-23 20:07:48,844 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:07:49,253 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:07:49,254 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:07:49,254 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 20:07:49,255 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:07:49,256 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 20:07:49,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 20:07:49,256 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 20:07:49,256 INFO L87 Difference]: Start difference. First operand 12990 states and 16354 transitions. Second operand 7 states. [2018-07-23 20:08:07,220 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 20:09:32,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:09:32,602 INFO L93 Difference]: Finished difference Result 26679 states and 33439 transitions. [2018-07-23 20:09:32,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:09:32,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2018-07-23 20:09:32,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:09:32,637 INFO L225 Difference]: With dead ends: 26679 [2018-07-23 20:09:32,637 INFO L226 Difference]: Without dead ends: 13695 [2018-07-23 20:09:32,667 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 235 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 20:09:32,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13695 states. [2018-07-23 20:09:32,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13695 to 13693. [2018-07-23 20:09:32,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13693 states. [2018-07-23 20:09:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 17069 transitions. [2018-07-23 20:09:32,906 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 17069 transitions. Word has length 235 [2018-07-23 20:09:32,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:09:32,906 INFO L471 AbstractCegarLoop]: Abstraction has 13693 states and 17069 transitions. [2018-07-23 20:09:32,906 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 20:09:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 17069 transitions. [2018-07-23 20:09:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-07-23 20:09:32,917 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:09:32,917 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:32,917 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 20:09:32,918 INFO L82 PathProgramCache]: Analyzing trace with hash -20222492, now seen corresponding path program 1 times [2018-07-23 20:09:32,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:09:32,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:09:32,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:09:32,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:09:32,922 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:09:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:09:33,486 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:09:33,699 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:09:33,943 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:09:34,266 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-23 20:09:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 83 proven. 262 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 20:09:34,784 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:09:34,784 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:09:34,785 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 422 with the following transitions: [2018-07-23 20:09:34,785 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1667], [1669], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2288], [2289], [2293], [2297], [2301], [2305], [2308], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2608], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:09:34,795 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:09:34,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:10:05,905 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:10:05,905 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 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 20:10:05,911 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:10:19,843 INFO L232 lantSequenceWeakener]: Weakened 419 states. On average, predicates are now at 77.34% of their original sizes. [2018-07-23 20:10:19,843 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:10:20,459 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:10:20,460 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:10:20,460 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-23 20:10:20,460 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:10:20,461 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 20:10:20,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 20:10:20,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 20:10:20,462 INFO L87 Difference]: Start difference. First operand 13693 states and 17069 transitions. Second operand 11 states. Received shutdown request... [2018-07-23 20:10:33,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:10:33,224 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:10:33,229 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:10:33,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:10:33 BoogieIcfgContainer [2018-07-23 20:10:33,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:10:33,231 INFO L168 Benchmark]: Toolchain (without parser) took 225940.50 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -739.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-07-23 20:10:33,232 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:10:33,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1997.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:10:33,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 20:10:33,234 INFO L168 Benchmark]: Boogie Preprocessor took 703.60 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 846.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:10:33,235 INFO L168 Benchmark]: RCFGBuilder took 9874.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 537.4 MB). Peak memory consumption was 537.4 MB. Max. memory is 7.1 GB. [2018-07-23 20:10:33,236 INFO L168 Benchmark]: TraceAbstraction took 213140.16 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -417.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-07-23 20:10:33,241 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1997.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 219.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 703.60 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 846.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9874.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 537.4 MB). Peak memory consumption was 537.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213140.16 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -417.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 33). Cancelled while BasicCegarLoop was constructing difference of abstraction (13693states) and interpolant automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (112 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 213.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 150.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2316 SDtfs, 8787 SDslu, 848 SDs, 0 SdLazy, 17731 SolverSat, 4157 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 688 GetRequests, 648 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13693occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 38.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9962632407038071 AbsIntWeakeningRatio, 0.08868501529051988 AbsIntAvgWeakeningVarsNumRemoved, 334.62079510703364 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 77 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1060 NumberOfCodeBlocks, 1060 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1054 ConstructedInterpolants, 0 QuantifiedInterpolants, 1777204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 301/565 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/Problem18_label57_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-10-33-257.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label57_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-10-33-257.csv Completed graceful shutdown