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/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:26:26,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:26:26,355 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:26:26,370 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:26:26,370 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:26:26,371 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:26:26,372 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:26:26,374 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:26:26,376 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:26:26,377 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:26:26,377 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:26:26,378 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:26:26,379 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:26:26,380 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:26:26,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:26:26,382 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:26:26,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:26:26,384 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:26:26,386 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:26:26,388 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:26:26,389 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:26:26,391 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:26:26,396 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:26:26,396 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:26:26,398 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:26:26,400 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:26:26,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:26:26,405 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:26:26,407 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:26:26,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:26:26,411 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:26:26,412 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:26:26,412 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:26:26,412 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:26:26,413 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:26:26,415 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:26:26,416 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 12:26:26,444 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:26:26,444 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:26:26,445 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:26:26,445 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:26:26,448 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:26:26,449 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:26:26,449 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:26:26,449 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:26:26,449 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:26:26,450 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:26:26,450 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:26:26,451 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:26:26,451 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:26:26,452 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:26:26,452 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:26:26,452 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:26:26,452 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:26:26,452 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:26:26,452 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:26:26,453 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:26:26,453 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:26:26,453 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:26:26,455 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:26:26,455 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:26:26,455 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:26:26,456 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:26:26,456 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:26:26,456 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:26:26,456 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:26:26,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:26:26,456 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:26:26,457 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:26:26,457 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:26:26,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:26:26,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:26:26,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:26:26,545 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:26:26,545 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:26:26,546 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label40_false-unreach-call.c [2018-07-24 12:26:26,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d510653/8855c70a9c5d45049b55c9db035f976a/FLAGaa1db4fed [2018-07-24 12:26:27,287 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:26:27,288 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label40_false-unreach-call.c [2018-07-24 12:26:27,324 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d510653/8855c70a9c5d45049b55c9db035f976a/FLAGaa1db4fed [2018-07-24 12:26:27,348 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d510653/8855c70a9c5d45049b55c9db035f976a [2018-07-24 12:26:27,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:26:27,363 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:26:27,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:26:27,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:26:27,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:26:27,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:26:27" (1/1) ... [2018-07-24 12:26:27,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a59828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:27, skipping insertion in model container [2018-07-24 12:26:27,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:26:27" (1/1) ... [2018-07-24 12:26:27,678 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:26:28,373 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:26:28,390 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:26:28,867 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:26:29,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29 WrapperNode [2018-07-24 12:26:29,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:26:29,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:26:29,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:26:29,080 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:26:29,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:29,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:29,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:26:29,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:26:29,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:26:29,364 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:26:29,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:29,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:29,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:29,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:30,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:30,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:30,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (1/1) ... [2018-07-24 12:26:30,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:26:30,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:26:30,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:26:30,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:26:30,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (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 [2018-07-24 12:26:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:26:30,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:26:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:26:30,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:26:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:26:30,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:26:30,270 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 [2018-07-24 12:26:30,270 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 [2018-07-24 12:26:30,270 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 [2018-07-24 12:26:30,271 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 [2018-07-24 12:26:42,855 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:26:42,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:26:42 BoogieIcfgContainer [2018-07-24 12:26:42,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:26:42,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:26:42,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:26:42,861 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:26:42,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:26:27" (1/3) ... [2018-07-24 12:26:42,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5c77c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:26:42, skipping insertion in model container [2018-07-24 12:26:42,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:26:29" (2/3) ... [2018-07-24 12:26:42,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5c77c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:26:42, skipping insertion in model container [2018-07-24 12:26:42,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:26:42" (3/3) ... [2018-07-24 12:26:42,865 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label40_false-unreach-call.c [2018-07-24 12:26:42,876 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:26:42,886 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:26:42,959 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:26:42,960 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:26:42,960 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:26:42,960 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:26:42,961 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:26:42,961 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:26:42,961 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:26:42,961 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:26:42,961 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:26:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 12:26:43,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-24 12:26:43,030 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:26:43,032 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] [2018-07-24 12:26:43,032 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]=== [2018-07-24 12:26:43,038 INFO L82 PathProgramCache]: Analyzing trace with hash 559416358, now seen corresponding path program 1 times [2018-07-24 12:26:43,042 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:26:43,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:26:43,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:26:43,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:26:43,108 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:26:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:26:43,536 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 12:26:43,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:26:43,547 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:26:43,548 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:26:43,548 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:26:43,554 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:26:43,570 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:26:43,571 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:26:43,574 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 12:26:54,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:26:54,897 INFO L93 Difference]: Finished difference Result 2125 states and 3954 transitions. [2018-07-24 12:26:54,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:26:54,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-07-24 12:26:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:26:54,935 INFO L225 Difference]: With dead ends: 2125 [2018-07-24 12:26:54,936 INFO L226 Difference]: Without dead ends: 1515 [2018-07-24 12:26:54,949 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:26:54,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2018-07-24 12:26:55,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1043. [2018-07-24 12:26:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-07-24 12:26:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1647 transitions. [2018-07-24 12:26:55,091 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1647 transitions. Word has length 29 [2018-07-24 12:26:55,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:26:55,091 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1647 transitions. [2018-07-24 12:26:55,092 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:26:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1647 transitions. [2018-07-24 12:26:55,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-24 12:26:55,097 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:26:55,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:26:55,098 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]=== [2018-07-24 12:26:55,098 INFO L82 PathProgramCache]: Analyzing trace with hash 766393591, now seen corresponding path program 1 times [2018-07-24 12:26:55,099 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:26:55,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:26:55,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:26:55,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:26:55,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:26:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:26:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:26:55,546 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:26:55,547 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:26:55,547 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:26:55,549 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:26:55,549 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:26:55,549 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:26:55,550 INFO L87 Difference]: Start difference. First operand 1043 states and 1647 transitions. Second operand 6 states. [2018-07-24 12:27:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:27:15,522 INFO L93 Difference]: Finished difference Result 3918 states and 6355 transitions. [2018-07-24 12:27:15,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:27:15,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-07-24 12:27:15,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:27:15,543 INFO L225 Difference]: With dead ends: 3918 [2018-07-24 12:27:15,544 INFO L226 Difference]: Without dead ends: 2881 [2018-07-24 12:27:15,554 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:27:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2018-07-24 12:27:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2874. [2018-07-24 12:27:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2874 states. [2018-07-24 12:27:15,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 3839 transitions. [2018-07-24 12:27:15,662 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 3839 transitions. Word has length 101 [2018-07-24 12:27:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:27:15,663 INFO L471 AbstractCegarLoop]: Abstraction has 2874 states and 3839 transitions. [2018-07-24 12:27:15,663 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:27:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 3839 transitions. [2018-07-24 12:27:15,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-24 12:27:15,668 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:27:15,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:27:15,669 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]=== [2018-07-24 12:27:15,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1473411399, now seen corresponding path program 1 times [2018-07-24 12:27:15,669 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:27:15,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:15,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:15,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:15,673 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:27:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:15,988 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:27:15,988 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:27:16,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:16,012 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:27:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:16,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:27:18,694 WARN L169 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-07-24 12:27:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:18,778 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:27:20,265 WARN L169 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-07-24 12:27:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:20,665 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:27:20,665 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-07-24 12:27:20,666 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:27:20,666 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:27:20,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:27:20,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:27:20,668 INFO L87 Difference]: Start difference. First operand 2874 states and 3839 transitions. Second operand 6 states. [2018-07-24 12:27:55,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:27:55,202 INFO L93 Difference]: Finished difference Result 8505 states and 12112 transitions. [2018-07-24 12:27:55,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:27:55,206 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-24 12:27:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:27:55,247 INFO L225 Difference]: With dead ends: 8505 [2018-07-24 12:27:55,247 INFO L226 Difference]: Without dead ends: 5637 [2018-07-24 12:27:55,272 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:27:55,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5637 states. [2018-07-24 12:27:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5637 to 5626. [2018-07-24 12:27:55,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5626 states. [2018-07-24 12:27:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5626 states to 5626 states and 7889 transitions. [2018-07-24 12:27:55,477 INFO L78 Accepts]: Start accepts. Automaton has 5626 states and 7889 transitions. Word has length 104 [2018-07-24 12:27:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:27:55,478 INFO L471 AbstractCegarLoop]: Abstraction has 5626 states and 7889 transitions. [2018-07-24 12:27:55,478 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:27:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5626 states and 7889 transitions. [2018-07-24 12:27:55,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-24 12:27:55,482 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:27:55,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:27:55,482 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]=== [2018-07-24 12:27:55,482 INFO L82 PathProgramCache]: Analyzing trace with hash 46147223, now seen corresponding path program 1 times [2018-07-24 12:27:55,483 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:27:55,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:55,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:55,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:55,486 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:27:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:55,890 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:27:55,890 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:27:55,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:55,907 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:27:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:55,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:27:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:56,046 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:27:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:56,129 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 12:27:56,129 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 12:27:56,129 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:27:56,130 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:27:56,130 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:27:56,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:27:56,131 INFO L87 Difference]: Start difference. First operand 5626 states and 7889 transitions. Second operand 3 states. [2018-07-24 12:28:02,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:28:02,447 INFO L93 Difference]: Finished difference Result 16547 states and 24180 transitions. [2018-07-24 12:28:02,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:28:02,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2018-07-24 12:28:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:28:02,512 INFO L225 Difference]: With dead ends: 16547 [2018-07-24 12:28:02,512 INFO L226 Difference]: Without dead ends: 10927 [2018-07-24 12:28:02,559 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 233 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:28:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10927 states. [2018-07-24 12:28:02,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10927 to 10926. [2018-07-24 12:28:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10926 states. [2018-07-24 12:28:02,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10926 states to 10926 states and 15671 transitions. [2018-07-24 12:28:02,869 INFO L78 Accepts]: Start accepts. Automaton has 10926 states and 15671 transitions. Word has length 117 [2018-07-24 12:28:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:28:02,870 INFO L471 AbstractCegarLoop]: Abstraction has 10926 states and 15671 transitions. [2018-07-24 12:28:02,870 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:28:02,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10926 states and 15671 transitions. [2018-07-24 12:28:02,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-07-24 12:28:02,876 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:28:02,877 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:28:02,877 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]=== [2018-07-24 12:28:02,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1941415056, now seen corresponding path program 1 times [2018-07-24 12:28:02,877 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:28:02,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:02,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:02,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:02,879 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:28:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:03,105 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-24 12:28:03,106 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:28:03,106 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:28:03,106 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:28:03,107 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:28:03,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:28:03,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:28:03,107 INFO L87 Difference]: Start difference. First operand 10926 states and 15671 transitions. Second operand 3 states. [2018-07-24 12:28:09,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:28:09,599 INFO L93 Difference]: Finished difference Result 25779 states and 38758 transitions. [2018-07-24 12:28:09,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:28:09,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2018-07-24 12:28:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:28:09,687 INFO L225 Difference]: With dead ends: 25779 [2018-07-24 12:28:09,688 INFO L226 Difference]: Without dead ends: 14859 [2018-07-24 12:28:09,724 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:28:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14859 states. [2018-07-24 12:28:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14859 to 14850. [2018-07-24 12:28:10,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14850 states. [2018-07-24 12:28:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14850 states to 14850 states and 20372 transitions. [2018-07-24 12:28:10,253 INFO L78 Accepts]: Start accepts. Automaton has 14850 states and 20372 transitions. Word has length 193 [2018-07-24 12:28:10,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:28:10,254 INFO L471 AbstractCegarLoop]: Abstraction has 14850 states and 20372 transitions. [2018-07-24 12:28:10,254 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:28:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 14850 states and 20372 transitions. [2018-07-24 12:28:10,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-07-24 12:28:10,258 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:28:10,258 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:28:10,259 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]=== [2018-07-24 12:28:10,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1311144718, now seen corresponding path program 1 times [2018-07-24 12:28:10,259 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:28:10,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:10,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:10,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:10,260 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:28:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:10,594 WARN L169 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:28:10,819 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 12:28:10,819 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:28:10,819 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:28:10,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:10,829 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:28:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:10,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:28:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 117 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:11,175 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:28:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 117 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:11,342 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:28:11,342 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:28:11,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:11,359 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:28:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:11,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:28:11,762 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 12:28:11,762 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:28:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 12:28:11,932 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 12:28:11,932 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-07-24 12:28:11,933 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:28:11,933 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:28:11,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:28:11,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:28:11,934 INFO L87 Difference]: Start difference. First operand 14850 states and 20372 transitions. Second operand 5 states. [2018-07-24 12:28:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:28:21,574 INFO L93 Difference]: Finished difference Result 34262 states and 48545 transitions. [2018-07-24 12:28:21,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:28:21,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-07-24 12:28:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:28:21,650 INFO L225 Difference]: With dead ends: 34262 [2018-07-24 12:28:21,650 INFO L226 Difference]: Without dead ends: 19418 [2018-07-24 12:28:21,677 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 784 GetRequests, 766 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:28:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19418 states. [2018-07-24 12:28:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19418 to 19416. [2018-07-24 12:28:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19416 states. [2018-07-24 12:28:22,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19416 states to 19416 states and 25556 transitions. [2018-07-24 12:28:22,071 INFO L78 Accepts]: Start accepts. Automaton has 19416 states and 25556 transitions. Word has length 194 [2018-07-24 12:28:22,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:28:22,071 INFO L471 AbstractCegarLoop]: Abstraction has 19416 states and 25556 transitions. [2018-07-24 12:28:22,072 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:28:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 19416 states and 25556 transitions. [2018-07-24 12:28:22,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-07-24 12:28:22,076 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:28:22,076 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:28:22,076 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]=== [2018-07-24 12:28:22,077 INFO L82 PathProgramCache]: Analyzing trace with hash 509637003, now seen corresponding path program 1 times [2018-07-24 12:28:22,077 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:28:22,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:22,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:22,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:22,078 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:28:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:22,932 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 80 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-07-24 12:28:22,932 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:28:22,933 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:28:22,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:22,947 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:28:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:23,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:28:25,425 WARN L169 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-07-24 12:28:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 12:28:25,520 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:28:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:28,265 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:28:28,265 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:28:28,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:28,285 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:28:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:28,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:28:28,620 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 12:28:28,621 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:28:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:29,087 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:28:29,088 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 17 [2018-07-24 12:28:29,088 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:28:29,089 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:28:29,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:28:29,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-24 12:28:29,089 INFO L87 Difference]: Start difference. First operand 19416 states and 25556 transitions. Second operand 11 states. Received shutdown request... [2018-07-24 12:30:43,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-24 12:30:43,367 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:30:43,372 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:30:43,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:30:43 BoogieIcfgContainer [2018-07-24 12:30:43,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:30:43,374 INFO L168 Benchmark]: Toolchain (without parser) took 256012.20 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -573.0 MB). Peak memory consumption was 883.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:30:43,375 INFO L168 Benchmark]: CDTParser took 1.04 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. [2018-07-24 12:30:43,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1715.73 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. [2018-07-24 12:30:43,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 283.43 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:30:43,378 INFO L168 Benchmark]: Boogie Preprocessor took 830.95 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 949.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2018-07-24 12:30:43,379 INFO L168 Benchmark]: RCFGBuilder took 12661.48 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 501.1 MB). Peak memory consumption was 501.1 MB. Max. memory is 7.1 GB. [2018-07-24 12:30:43,380 INFO L168 Benchmark]: TraceAbstraction took 240515.87 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 507.0 MB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -133.4 MB). Peak memory consumption was 373.6 MB. Max. memory is 7.1 GB. [2018-07-24 12:30:43,392 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 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 1715.73 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 283.43 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 830.95 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 949.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12661.48 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 501.1 MB). Peak memory consumption was 501.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240515.87 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 507.0 MB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -133.4 MB). Peak memory consumption was 373.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 74). Cancelled while BasicCegarLoop was constructing difference of abstraction (19416states) and interpolant automaton (currently 17 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (10225 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 240.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 223.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2791 SDtfs, 10839 SDslu, 1987 SDs, 0 SdLazy, 22319 SolverSat, 5413 SolverUnsat, 62 SolverUnknown, 0 SolverNotchecked, 213.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2103 GetRequests, 2024 SyntacticMatches, 19 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19416occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 502 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 1965 NumberOfCodeBlocks, 1965 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2967 ConstructedInterpolants, 266 QuantifiedInterpolants, 3111794 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2113 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 1220/1529 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/Problem17_label40_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-30-43-409.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label40_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-30-43-409.csv Completed graceful shutdown