java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 09:34:29,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 09:34:29,361 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 09:34:29,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 09:34:29,379 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 09:34:29,380 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 09:34:29,381 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 09:34:29,389 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 09:34:29,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 09:34:29,393 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 09:34:29,394 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 09:34:29,394 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 09:34:29,395 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 09:34:29,403 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 09:34:29,404 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 09:34:29,405 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 09:34:29,406 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 09:34:29,407 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 09:34:29,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 09:34:29,413 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 09:34:29,416 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 09:34:29,418 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 09:34:29,423 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 09:34:29,431 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 09:34:29,431 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 09:34:29,432 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 09:34:29,435 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 09:34:29,435 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 09:34:29,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 09:34:29,454 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 09:34:29,455 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 09:34:29,455 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 09:34:29,455 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 09:34:29,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 09:34:29,456 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 09:34:29,456 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 09:34:29,456 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 09:34:29,456 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 09:34:29,456 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 09:34:29,457 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 09:34:29,457 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 09:34:29,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 09:34:29,458 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 09:34:29,458 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 09:34:29,458 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 09:34:29,458 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 09:34:29,459 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 09:34:29,459 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 09:34:29,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 09:34:29,459 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 09:34:29,459 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 09:34:29,459 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 09:34:29,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 09:34:29,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 09:34:29,460 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 09:34:29,460 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 09:34:29,460 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 09:34:29,461 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 09:34:29,461 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 09:34:29,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 09:34:29,461 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 09:34:29,461 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 09:34:29,461 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 09:34:29,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 09:34:29,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 09:34:29,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 09:34:29,520 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 09:34:29,521 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 09:34:29,521 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label57_true-unreach-call.c [2018-07-21 09:34:29,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/248eed806/d089676b178346f4a7fbfc4e67eef4e1/FLAG2c877ed22 [2018-07-21 09:34:30,267 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 09:34:30,267 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label57_true-unreach-call.c [2018-07-21 09:34:30,322 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/248eed806/d089676b178346f4a7fbfc4e67eef4e1/FLAG2c877ed22 [2018-07-21 09:34:30,349 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/248eed806/d089676b178346f4a7fbfc4e67eef4e1 [2018-07-21 09:34:30,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 09:34:30,373 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 09:34:30,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 09:34:30,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 09:34:30,386 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 09:34:30,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:34:30" (1/1) ... [2018-07-21 09:34:30,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d181515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:30, skipping insertion in model container [2018-07-21 09:34:30,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:34:30" (1/1) ... [2018-07-21 09:34:30,704 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 09:34:31,349 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 09:34:31,371 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 09:34:31,994 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 09:34:32,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32 WrapperNode [2018-07-21 09:34:32,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 09:34:32,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 09:34:32,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 09:34:32,082 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 09:34:32,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 09:34:32,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 09:34:32,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 09:34:32,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 09:34:32,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... [2018-07-21 09:34:32,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 09:34:32,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 09:34:32,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 09:34:32,703 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 09:34:32,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 09:34:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 09:34:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 09:34:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 09:34:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 09:34:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 09:34:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 09:34:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 09:34:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 09:34:38,858 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 09:34:38,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:34:38 BoogieIcfgContainer [2018-07-21 09:34:38,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 09:34:38,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 09:34:38,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 09:34:38,864 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 09:34:38,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:34:30" (1/3) ... [2018-07-21 09:34:38,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e39b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:34:38, skipping insertion in model container [2018-07-21 09:34:38,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:34:32" (2/3) ... [2018-07-21 09:34:38,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e39b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:34:38, skipping insertion in model container [2018-07-21 09:34:38,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:34:38" (3/3) ... [2018-07-21 09:34:38,868 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label57_true-unreach-call.c [2018-07-21 09:34:38,876 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 09:34:38,884 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 09:34:38,939 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 09:34:38,940 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 09:34:38,941 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 09:34:38,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 09:34:38,941 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 09:34:38,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 09:34:38,941 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 09:34:38,941 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 09:34:38,941 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 09:34:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-07-21 09:34:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-21 09:34:38,995 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 09:34:38,996 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 09:34:38,997 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 09:34:39,001 INFO L82 PathProgramCache]: Analyzing trace with hash 243085993, now seen corresponding path program 1 times [2018-07-21 09:34:39,004 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 09:34:39,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:39,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 09:34:39,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:39,065 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 09:34:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 09:34:39,926 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-07-21 09:34:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 09:34:40,343 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 09:34:40,344 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 09:34:40,344 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 09:34:40,355 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 09:34:40,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 09:34:40,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 09:34:40,376 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-07-21 09:34:43,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 09:34:43,365 INFO L93 Difference]: Finished difference Result 1058 states and 1911 transitions. [2018-07-21 09:34:43,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 09:34:43,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2018-07-21 09:34:43,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 09:34:43,397 INFO L225 Difference]: With dead ends: 1058 [2018-07-21 09:34:43,397 INFO L226 Difference]: Without dead ends: 740 [2018-07-21 09:34:43,405 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 09:34:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2018-07-21 09:34:43,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 525. [2018-07-21 09:34:43,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2018-07-21 09:34:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 877 transitions. [2018-07-21 09:34:43,505 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 877 transitions. Word has length 168 [2018-07-21 09:34:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 09:34:43,508 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 877 transitions. [2018-07-21 09:34:43,508 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 09:34:43,508 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 877 transitions. [2018-07-21 09:34:43,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-07-21 09:34:43,523 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 09:34:43,523 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 09:34:43,524 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 09:34:43,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1951224389, now seen corresponding path program 1 times [2018-07-21 09:34:43,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 09:34:43,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:43,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 09:34:43,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:43,527 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 09:34:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 09:34:44,045 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 09:34:44,046 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 09:34:44,067 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 09:34:44,068 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 09:34:44,072 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 09:34:44,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 09:34:44,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 09:34:44,073 INFO L87 Difference]: Start difference. First operand 525 states and 877 transitions. Second operand 3 states. [2018-07-21 09:34:45,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 09:34:45,471 INFO L93 Difference]: Finished difference Result 1473 states and 2531 transitions. [2018-07-21 09:34:45,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 09:34:45,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2018-07-21 09:34:45,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 09:34:45,482 INFO L225 Difference]: With dead ends: 1473 [2018-07-21 09:34:45,483 INFO L226 Difference]: Without dead ends: 954 [2018-07-21 09:34:45,487 INFO L578 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 [2018-07-21 09:34:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2018-07-21 09:34:45,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 953. [2018-07-21 09:34:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-07-21 09:34:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1506 transitions. [2018-07-21 09:34:45,550 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1506 transitions. Word has length 181 [2018-07-21 09:34:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 09:34:45,551 INFO L471 AbstractCegarLoop]: Abstraction has 953 states and 1506 transitions. [2018-07-21 09:34:45,551 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 09:34:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1506 transitions. [2018-07-21 09:34:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-21 09:34:45,559 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 09:34:45,559 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 09:34:45,559 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 09:34:45,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1090282785, now seen corresponding path program 1 times [2018-07-21 09:34:45,560 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 09:34:45,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:45,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 09:34:45,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:45,561 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 09:34:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 09:34:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 09:34:46,028 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 09:34:46,029 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 09:34:46,030 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 09:34:46,030 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 09:34:46,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 09:34:46,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 09:34:46,031 INFO L87 Difference]: Start difference. First operand 953 states and 1506 transitions. Second operand 4 states. [2018-07-21 09:34:50,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 09:34:50,055 INFO L93 Difference]: Finished difference Result 3568 states and 5874 transitions. [2018-07-21 09:34:50,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 09:34:50,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 183 [2018-07-21 09:34:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 09:34:50,084 INFO L225 Difference]: With dead ends: 3568 [2018-07-21 09:34:50,084 INFO L226 Difference]: Without dead ends: 2621 [2018-07-21 09:34:50,091 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 09:34:50,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2018-07-21 09:34:50,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2618. [2018-07-21 09:34:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2618 states. [2018-07-21 09:34:50,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 3930 transitions. [2018-07-21 09:34:50,260 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 3930 transitions. Word has length 183 [2018-07-21 09:34:50,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 09:34:50,261 INFO L471 AbstractCegarLoop]: Abstraction has 2618 states and 3930 transitions. [2018-07-21 09:34:50,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 09:34:50,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 3930 transitions. [2018-07-21 09:34:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-07-21 09:34:50,277 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 09:34:50,277 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 09:34:50,277 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 09:34:50,278 INFO L82 PathProgramCache]: Analyzing trace with hash -941699075, now seen corresponding path program 1 times [2018-07-21 09:34:50,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 09:34:50,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:50,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 09:34:50,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:50,280 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 09:34:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 09:34:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 09:34:50,602 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 09:34:50,602 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 09:34:50,602 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 09:34:50,603 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 09:34:50,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 09:34:50,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 09:34:50,604 INFO L87 Difference]: Start difference. First operand 2618 states and 3930 transitions. Second operand 6 states. [2018-07-21 09:34:52,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 09:34:52,976 INFO L93 Difference]: Finished difference Result 8257 states and 13313 transitions. [2018-07-21 09:34:52,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 09:34:52,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-07-21 09:34:52,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 09:34:53,079 INFO L225 Difference]: With dead ends: 8257 [2018-07-21 09:34:53,080 INFO L226 Difference]: Without dead ends: 5645 [2018-07-21 09:34:53,098 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 09:34:53,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2018-07-21 09:34:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 5564. [2018-07-21 09:34:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5564 states. [2018-07-21 09:34:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 8144 transitions. [2018-07-21 09:34:53,372 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 8144 transitions. Word has length 185 [2018-07-21 09:34:53,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 09:34:53,372 INFO L471 AbstractCegarLoop]: Abstraction has 5564 states and 8144 transitions. [2018-07-21 09:34:53,372 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 09:34:53,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 8144 transitions. [2018-07-21 09:34:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-07-21 09:34:53,397 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 09:34:53,397 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 09:34:53,397 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 09:34:53,398 INFO L82 PathProgramCache]: Analyzing trace with hash -205706470, now seen corresponding path program 1 times [2018-07-21 09:34:53,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 09:34:53,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:53,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 09:34:53,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 09:34:53,400 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 09:34:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 09:34:53,746 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 09:34:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 39 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 09:34:54,143 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 09:34:54,143 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 09:34:54,144 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-07-21 09:34:54,146 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [37], [41], [45], [49], [53], [57], [61], [65], [68], [69], [73], [77], [81], [85], [89], [100], [104], [108], [112], [116], [119], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [183], [187], [191], [195], [199], [203], [207], [211], [215], [226], [230], [234], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [301], [305], [309], [313], [317], [321], [332], [336], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [387], [391], [395], [399], [403], [407], [418], [422], [426], [430], [441], [445], [449], [453], [457], [461], [465], [469], [473], [477], [481], [485], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [544], [548], [552], [556], [560], [564], [575], [579], [583], [594], [598], [609], [613], [617], [621], [625], [629], [633], [637], [648], [659], [670], [674], [678], [682], [686], [690], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [829], [831], [1181], [1182], [1183], [1184], [1186], [1187] [2018-07-21 09:34:54,247 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 09:34:54,248 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 09:38:59,348 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 09:38:59,349 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 09:38:59,350 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 09:38:59,350 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 09:38:59,350 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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 [2018-07-21 09:38:59,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 09:38:59,360 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 09:38:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 09:38:59,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 09:38:59,680 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 09:38:59,881 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 09:38:59,882 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 09:38:59,887 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 09:38:59,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:38:59 BoogieIcfgContainer [2018-07-21 09:38:59,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 09:38:59,889 INFO L168 Benchmark]: Toolchain (without parser) took 269525.55 ms. Allocated memory was 304.1 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 245.1 MB in the beginning and 986.9 MB in the end (delta: -741.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-07-21 09:38:59,890 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 09:38:59,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1706.37 ms. Allocated memory was 304.1 MB in the beginning and 338.7 MB in the end (delta: 34.6 MB). Free memory was 245.1 MB in the beginning and 277.2 MB in the end (delta: -32.1 MB). Peak memory consumption was 74.3 MB. Max. memory is 5.3 GB. [2018-07-21 09:38:59,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.99 ms. Allocated memory is still 338.7 MB. Free memory was 277.2 MB in the beginning and 262.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB. [2018-07-21 09:38:59,896 INFO L168 Benchmark]: Boogie Preprocessor took 420.35 ms. Allocated memory was 338.7 MB in the beginning and 523.2 MB in the end (delta: 184.5 MB). Free memory was 262.7 MB in the beginning and 482.9 MB in the end (delta: -220.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. [2018-07-21 09:38:59,897 INFO L168 Benchmark]: RCFGBuilder took 6156.56 ms. Allocated memory was 523.2 MB in the beginning and 532.7 MB in the end (delta: 9.4 MB). Free memory was 482.9 MB in the beginning and 402.0 MB in the end (delta: 81.0 MB). Peak memory consumption was 202.7 MB. Max. memory is 5.3 GB. [2018-07-21 09:38:59,897 INFO L168 Benchmark]: TraceAbstraction took 261027.97 ms. Allocated memory was 532.7 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 398.1 MB in the beginning and 986.9 MB in the end (delta: -588.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-07-21 09:38:59,903 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1706.37 ms. Allocated memory was 304.1 MB in the beginning and 338.7 MB in the end (delta: 34.6 MB). Free memory was 245.1 MB in the beginning and 277.2 MB in the end (delta: -32.1 MB). Peak memory consumption was 74.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 199.99 ms. Allocated memory is still 338.7 MB. Free memory was 277.2 MB in the beginning and 262.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 420.35 ms. Allocated memory was 338.7 MB in the beginning and 523.2 MB in the end (delta: 184.5 MB). Free memory was 262.7 MB in the beginning and 482.9 MB in the end (delta: -220.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. * RCFGBuilder took 6156.56 ms. Allocated memory was 523.2 MB in the beginning and 532.7 MB in the end (delta: 9.4 MB). Free memory was 482.9 MB in the beginning and 402.0 MB in the end (delta: 81.0 MB). Peak memory consumption was 202.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 261027.97 ms. Allocated memory was 532.7 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 398.1 MB in the beginning and 986.9 MB in the end (delta: -588.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1518]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1518). Cancelled while BasicCegarLoop was analyzing trace of length 214 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 260.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 11.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1378 SDtfs, 2043 SDslu, 470 SDs, 0 SdLazy, 4367 SolverSat, 1153 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5564occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 245.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 300 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 717 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 713 ConstructedInterpolants, 0 QuantifiedInterpolants, 501951 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem03_label57_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_09-38-59-930.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem03_label57_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_09-38-59-930.csv Completed graceful shutdown