java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:30:12,755 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:30:12,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:30:12,770 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:30:12,771 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:30:12,772 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:30:12,773 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:30:12,775 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:30:12,776 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:30:12,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:30:12,778 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:30:12,778 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:30:12,779 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:30:12,780 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:30:12,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:30:12,782 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:30:12,783 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:30:12,785 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:30:12,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:30:12,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:30:12,795 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:30:12,796 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:30:12,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:30:12,798 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:30:12,799 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:30:12,799 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:30:12,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:30:12,801 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:30:12,802 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:30:12,803 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:30:12,803 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:30:12,804 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:30:12,804 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:30:12,804 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:30:12,806 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:30:12,807 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:30:12,807 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 20:30:12,837 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:30:12,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:30:12,839 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:30:12,840 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:30:12,840 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:30:12,840 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:30:12,840 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:30:12,840 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:30:12,841 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:30:12,841 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:30:12,841 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:30:12,842 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:30:12,842 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:30:12,842 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:30:12,842 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:30:12,842 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:30:12,842 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:30:12,843 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:30:12,843 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:30:12,843 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:30:12,843 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:30:12,843 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:30:12,844 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:30:12,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:30:12,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:30:12,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:30:12,844 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:30:12,845 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:30:12,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:30:12,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:30:12,845 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:30:12,845 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:30:12,846 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:30:12,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:30:12,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:30:12,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:30:12,909 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:30:12,909 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:30:12,910 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56_true-unreach-call_false-termination.c [2018-07-23 20:30:13,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12fe010b/dc67ec7efc034832839bb06feed224af/FLAGb60888182 [2018-07-23 20:30:13,591 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:30:13,592 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56_true-unreach-call_false-termination.c [2018-07-23 20:30:13,627 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12fe010b/dc67ec7efc034832839bb06feed224af/FLAGb60888182 [2018-07-23 20:30:13,644 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12fe010b/dc67ec7efc034832839bb06feed224af [2018-07-23 20:30:13,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:30:13,661 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:30:13,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:30:13,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:30:13,670 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:30:13,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:30:13" (1/1) ... [2018-07-23 20:30:13,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eba4ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:13, skipping insertion in model container [2018-07-23 20:30:13,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:30:13" (1/1) ... [2018-07-23 20:30:13,933 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:30:14,227 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:30:14,253 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:30:14,362 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:30:14,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14 WrapperNode [2018-07-23 20:30:14,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:30:14,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:30:14,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:30:14,411 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:30:14,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:30:14,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:30:14,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:30:14,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:30:14,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... [2018-07-23 20:30:14,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:30:14,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:30:14,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:30:14,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:30:14,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:30:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 20:30:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 20:30:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:30:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:30:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:30:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:30:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:30:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:30:18,286 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:30:18,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:30:18 BoogieIcfgContainer [2018-07-23 20:30:18,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:30:18,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:30:18,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:30:18,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:30:18,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:30:13" (1/3) ... [2018-07-23 20:30:18,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3d87aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:30:18, skipping insertion in model container [2018-07-23 20:30:18,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:30:14" (2/3) ... [2018-07-23 20:30:18,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3d87aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:30:18, skipping insertion in model container [2018-07-23 20:30:18,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:30:18" (3/3) ... [2018-07-23 20:30:18,301 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label56_true-unreach-call_false-termination.c [2018-07-23 20:30:18,312 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:30:18,328 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:30:18,388 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:30:18,390 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:30:18,390 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:30:18,390 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:30:18,390 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:30:18,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:30:18,391 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:30:18,391 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:30:18,391 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:30:18,420 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-23 20:30:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 20:30:18,437 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:30:18,438 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:30:18,439 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:30:18,446 INFO L82 PathProgramCache]: Analyzing trace with hash 148867168, now seen corresponding path program 1 times [2018-07-23 20:30:18,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:30:18,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:18,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:30:18,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:18,519 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:30:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:30:19,124 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:30:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:30:19,211 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:30:19,211 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:30:19,211 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:30:19,218 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:30:19,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:30:19,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:30:19,239 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-23 20:30:21,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:30:21,048 INFO L93 Difference]: Finished difference Result 623 states and 1063 transitions. [2018-07-23 20:30:21,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:30:21,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2018-07-23 20:30:21,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:30:21,073 INFO L225 Difference]: With dead ends: 623 [2018-07-23 20:30:21,074 INFO L226 Difference]: Without dead ends: 384 [2018-07-23 20:30:21,081 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:30:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-07-23 20:30:21,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2018-07-23 20:30:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-07-23 20:30:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 642 transitions. [2018-07-23 20:30:21,173 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 642 transitions. Word has length 130 [2018-07-23 20:30:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:30:21,174 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 642 transitions. [2018-07-23 20:30:21,174 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:30:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 642 transitions. [2018-07-23 20:30:21,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 20:30:21,182 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:30:21,182 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:30:21,182 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:30:21,183 INFO L82 PathProgramCache]: Analyzing trace with hash 11919745, now seen corresponding path program 1 times [2018-07-23 20:30:21,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:30:21,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:21,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:30:21,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:21,187 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:30:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:30:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:30:21,474 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:30:21,474 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:30:21,474 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:30:21,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:30:21,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:30:21,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:30:21,481 INFO L87 Difference]: Start difference. First operand 382 states and 642 transitions. Second operand 3 states. [2018-07-23 20:30:22,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:30:22,492 INFO L93 Difference]: Finished difference Result 1051 states and 1838 transitions. [2018-07-23 20:30:22,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:30:22,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2018-07-23 20:30:22,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:30:22,504 INFO L225 Difference]: With dead ends: 1051 [2018-07-23 20:30:22,505 INFO L226 Difference]: Without dead ends: 675 [2018-07-23 20:30:22,511 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:30:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2018-07-23 20:30:22,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2018-07-23 20:30:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2018-07-23 20:30:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1091 transitions. [2018-07-23 20:30:22,561 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1091 transitions. Word has length 140 [2018-07-23 20:30:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:30:22,562 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 1091 transitions. [2018-07-23 20:30:22,562 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:30:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1091 transitions. [2018-07-23 20:30:22,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 20:30:22,567 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:30:22,568 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:30:22,568 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:30:22,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1306828248, now seen corresponding path program 1 times [2018-07-23 20:30:22,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:30:22,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:22,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:30:22,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:22,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:30:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:30:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:30:22,797 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:30:22,798 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:30:22,798 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:30:22,799 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:30:22,799 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:30:22,799 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:30:22,800 INFO L87 Difference]: Start difference. First operand 675 states and 1091 transitions. Second operand 6 states. [2018-07-23 20:30:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:30:26,499 INFO L93 Difference]: Finished difference Result 2200 states and 3725 transitions. [2018-07-23 20:30:26,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:30:26,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2018-07-23 20:30:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:30:26,514 INFO L225 Difference]: With dead ends: 2200 [2018-07-23 20:30:26,514 INFO L226 Difference]: Without dead ends: 1531 [2018-07-23 20:30:26,520 INFO L573 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 [2018-07-23 20:30:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2018-07-23 20:30:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1501. [2018-07-23 20:30:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2018-07-23 20:30:26,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2317 transitions. [2018-07-23 20:30:26,601 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2317 transitions. Word has length 153 [2018-07-23 20:30:26,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:30:26,601 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 2317 transitions. [2018-07-23 20:30:26,601 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:30:26,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2317 transitions. [2018-07-23 20:30:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 20:30:26,609 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:30:26,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:30:26,610 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:30:26,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1539897444, now seen corresponding path program 1 times [2018-07-23 20:30:26,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:30:26,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:26,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:30:26,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:26,612 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:30:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:30:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:30:26,921 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:30:26,921 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 20:30:26,921 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:30:26,922 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 20:30:26,922 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 20:30:26,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:30:26,923 INFO L87 Difference]: Start difference. First operand 1501 states and 2317 transitions. Second operand 5 states. [2018-07-23 20:30:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:30:28,923 INFO L93 Difference]: Finished difference Result 2935 states and 4510 transitions. [2018-07-23 20:30:28,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:30:28,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-07-23 20:30:28,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:30:28,937 INFO L225 Difference]: With dead ends: 2935 [2018-07-23 20:30:28,938 INFO L226 Difference]: Without dead ends: 1292 [2018-07-23 20:30:28,945 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:30:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2018-07-23 20:30:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1292. [2018-07-23 20:30:28,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-07-23 20:30:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1901 transitions. [2018-07-23 20:30:29,005 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1901 transitions. Word has length 155 [2018-07-23 20:30:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:30:29,006 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1901 transitions. [2018-07-23 20:30:29,006 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 20:30:29,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1901 transitions. [2018-07-23 20:30:29,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 20:30:29,013 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:30:29,014 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:30:29,014 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:30:29,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1316406973, now seen corresponding path program 1 times [2018-07-23 20:30:29,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:30:29,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:29,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:30:29,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:30:29,016 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:30:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:30:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:30:29,363 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:30:29,364 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:30:29,365 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-07-23 20:30:29,367 INFO L201 CegarAbsIntRunner]: [0], [3], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [51], [62], [66], [70], [73], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [197], [208], [212], [216], [220], [231], [235], [239], [243], [247], [251], [255], [266], [270], [281], [285], [296], [307], [311], [315], [319], [323], [327], [331], [342], [346], [350], [354], [358], [362], [366], [370], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [709], [711], [861], [862], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-23 20:30:29,448 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:30:29,449 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:30:51,456 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:30:51,459 INFO L272 AbstractInterpreter]: Visited 131 different actions 131 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-07-23 20:30:51,483 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:30:56,692 INFO L232 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 81.24% of their original sizes. [2018-07-23 20:30:56,693 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:30:57,535 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:30:57,537 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:30:57,537 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-07-23 20:30:57,537 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:30:57,538 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 20:30:57,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 20:30:57,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-07-23 20:30:57,539 INFO L87 Difference]: Start difference. First operand 1292 states and 1901 transitions. Second operand 10 states. [2018-07-23 20:30:58,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 20:30:58,468 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__a25~0. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:148) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:86) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:370) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:141) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:127) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:309) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:443) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:641) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:570) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 20:30:58,477 INFO L168 Benchmark]: Toolchain (without parser) took 44817.96 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 988.9 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:58,480 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:30:58,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:58,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:30:58,484 INFO L168 Benchmark]: Boogie Preprocessor took 84.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:58,485 INFO L168 Benchmark]: RCFGBuilder took 3692.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -730.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:58,487 INFO L168 Benchmark]: TraceAbstraction took 40184.48 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -980.0 MB). Peak memory consumption was 928.4 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:58,496 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 99.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3692.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -730.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40184.48 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -980.0 MB). Peak memory consumption was 928.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__a25~0. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__a25~0.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:148) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label56_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-30-58-525.csv Received shutdown request...