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/Problem01_label02_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:14:11,971 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:14:11,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:14:11,987 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:14:11,987 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:14:11,988 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:14:11,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:14:11,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:14:11,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:14:11,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:14:11,995 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:14:11,996 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:14:11,996 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:14:11,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:14:11,999 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:14:11,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:14:12,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:14:12,002 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:14:12,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:14:12,006 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:14:12,007 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:14:12,008 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:14:12,010 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:14:12,011 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:14:12,011 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:14:12,012 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:14:12,013 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:14:12,013 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:14:12,014 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:14:12,015 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:14:12,016 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:14:12,016 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:14:12,016 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:14:12,017 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:14:12,017 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:14:12,018 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:14:12,018 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 20:14:12,041 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:14:12,042 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:14:12,043 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:14:12,043 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:14:12,043 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:14:12,043 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:14:12,044 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:14:12,044 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:14:12,044 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:14:12,044 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:14:12,044 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:14:12,045 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:14:12,045 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:14:12,046 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:14:12,046 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:14:12,046 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:14:12,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:14:12,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:14:12,047 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:14:12,047 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:14:12,047 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:14:12,047 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:14:12,048 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:14:12,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:14:12,048 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:14:12,048 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:14:12,048 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:14:12,049 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:14:12,049 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:14:12,049 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:14:12,049 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:14:12,049 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:14:12,050 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:14:12,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:14:12,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:14:12,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:14:12,129 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:14:12,129 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:14:12,130 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label02_true-unreach-call_false-termination.c [2018-07-23 20:14:12,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9070af0d4/68c185a8cfb94f80b8d4cc68d149450e/FLAGbae6de800 [2018-07-23 20:14:12,748 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:14:12,749 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label02_true-unreach-call_false-termination.c [2018-07-23 20:14:12,766 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9070af0d4/68c185a8cfb94f80b8d4cc68d149450e/FLAGbae6de800 [2018-07-23 20:14:12,782 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9070af0d4/68c185a8cfb94f80b8d4cc68d149450e [2018-07-23 20:14:12,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:14:12,798 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:14:12,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:14:12,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:14:12,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:14:12,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:14:12" (1/1) ... [2018-07-23 20:14:12,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58dc2a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:12, skipping insertion in model container [2018-07-23 20:14:12,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:14:12" (1/1) ... [2018-07-23 20:14:13,055 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:14:13,353 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:14:13,377 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:14:13,534 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:14:13,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13 WrapperNode [2018-07-23 20:14:13,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:14:13,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:14:13,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:14:13,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:14:13,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:14:13,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:14:13,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:14:13,706 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:14:13,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (1/1) ... [2018-07-23 20:14:13,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:14:13,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:14:13,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:14:13,822 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:14:13,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (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 20:14:14,073 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 20:14:14,074 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 20:14:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:14:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:14:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:14:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:14:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:14:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:14:17,511 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:14:17,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:14:17 BoogieIcfgContainer [2018-07-23 20:14:17,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:14:17,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:14:17,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:14:17,516 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:14:17,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:14:12" (1/3) ... [2018-07-23 20:14:17,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f25258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:14:17, skipping insertion in model container [2018-07-23 20:14:17,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:14:13" (2/3) ... [2018-07-23 20:14:17,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f25258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:14:17, skipping insertion in model container [2018-07-23 20:14:17,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:14:17" (3/3) ... [2018-07-23 20:14:17,520 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label02_true-unreach-call_false-termination.c [2018-07-23 20:14:17,531 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:14:17,540 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:14:17,590 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:14:17,591 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:14:17,591 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:14:17,591 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:14:17,591 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:14:17,592 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:14:17,592 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:14:17,592 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:14:17,592 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:14:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-07-23 20:14:17,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 20:14:17,635 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:14:17,636 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] [2018-07-23 20:14:17,637 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 20:14:17,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1360806637, now seen corresponding path program 1 times [2018-07-23 20:14:17,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:14:17,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:17,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:14:17,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:17,692 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:14:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:14:18,299 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:14:18,505 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 20:14:18,507 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:14:18,508 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:14:18,508 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:14:18,514 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:14:18,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:14:18,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:14:18,535 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-07-23 20:14:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:14:20,241 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-07-23 20:14:20,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:14:20,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2018-07-23 20:14:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:14:20,264 INFO L225 Difference]: With dead ends: 550 [2018-07-23 20:14:20,264 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 20:14:20,271 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:14:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 20:14:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-23 20:14:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-23 20:14:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 541 transitions. [2018-07-23 20:14:20,369 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 541 transitions. Word has length 97 [2018-07-23 20:14:20,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:14:20,371 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 541 transitions. [2018-07-23 20:14:20,371 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:14:20,371 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 541 transitions. [2018-07-23 20:14:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 20:14:20,383 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:14:20,383 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:14:20,384 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 20:14:20,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1263362474, now seen corresponding path program 1 times [2018-07-23 20:14:20,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:14:20,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:20,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:14:20,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:20,391 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:14:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:14:20,658 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:14:20,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:14:20,710 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:14:20,710 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:14:20,710 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:14:20,713 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:14:20,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:14:20,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:14:20,714 INFO L87 Difference]: Start difference. First operand 340 states and 541 transitions. Second operand 6 states. [2018-07-23 20:14:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:14:22,896 INFO L93 Difference]: Finished difference Result 1075 states and 1784 transitions. [2018-07-23 20:14:22,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:14:22,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-07-23 20:14:22,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:14:22,908 INFO L225 Difference]: With dead ends: 1075 [2018-07-23 20:14:22,909 INFO L226 Difference]: Without dead ends: 741 [2018-07-23 20:14:22,915 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:14:22,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-07-23 20:14:22,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-07-23 20:14:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-07-23 20:14:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1120 transitions. [2018-07-23 20:14:22,976 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1120 transitions. Word has length 108 [2018-07-23 20:14:22,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:14:22,977 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1120 transitions. [2018-07-23 20:14:22,977 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:14:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1120 transitions. [2018-07-23 20:14:22,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 20:14:22,981 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:14:22,981 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:14:22,981 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 20:14:22,982 INFO L82 PathProgramCache]: Analyzing trace with hash -505508864, now seen corresponding path program 1 times [2018-07-23 20:14:22,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:14:22,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:22,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:14:22,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:22,983 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:14:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:14:23,157 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:14:23,157 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:14:23,158 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:14:23,158 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:14:23,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:14:23,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:14:23,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:14:23,161 INFO L87 Difference]: Start difference. First operand 724 states and 1120 transitions. Second operand 3 states. [2018-07-23 20:14:25,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:14:25,150 INFO L93 Difference]: Finished difference Result 2075 states and 3312 transitions. [2018-07-23 20:14:25,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:14:25,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2018-07-23 20:14:25,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:14:25,166 INFO L225 Difference]: With dead ends: 2075 [2018-07-23 20:14:25,167 INFO L226 Difference]: Without dead ends: 1357 [2018-07-23 20:14:25,172 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 20:14:25,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2018-07-23 20:14:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1350. [2018-07-23 20:14:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1350 states. [2018-07-23 20:14:25,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 2010 transitions. [2018-07-23 20:14:25,234 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 2010 transitions. Word has length 109 [2018-07-23 20:14:25,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:14:25,235 INFO L471 AbstractCegarLoop]: Abstraction has 1350 states and 2010 transitions. [2018-07-23 20:14:25,235 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:14:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 2010 transitions. [2018-07-23 20:14:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 20:14:25,241 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:14:25,241 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-23 20:14:25,242 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 20:14:25,242 INFO L82 PathProgramCache]: Analyzing trace with hash -809933603, now seen corresponding path program 1 times [2018-07-23 20:14:25,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:14:25,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:25,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:14:25,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:14:25,244 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:14:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:14:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:14:25,580 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:14:25,580 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:14:25,581 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-07-23 20:14:25,583 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [12], [15], [16], [20], [24], [28], [32], [36], [40], [44], [48], [51], [52], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [411], [413], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-23 20:14:25,650 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:14:25,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:15:57,196 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:15:57,198 INFO L272 AbstractInterpreter]: Visited 101 different actions 166 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-07-23 20:15:57,223 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:16:10,854 INFO L232 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 80.27% of their original sizes. [2018-07-23 20:16:10,854 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:16:14,061 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:16:14,063 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:16:14,063 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-07-23 20:16:14,063 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:16:14,064 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 20:16:14,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 20:16:14,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-07-23 20:16:14,065 INFO L87 Difference]: Start difference. First operand 1350 states and 2010 transitions. Second operand 17 states. [2018-07-23 20:16:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:16:56,275 INFO L93 Difference]: Finished difference Result 2939 states and 4389 transitions. [2018-07-23 20:16:56,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 20:16:56,276 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 130 [2018-07-23 20:16:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:16:56,284 INFO L225 Difference]: With dead ends: 2939 [2018-07-23 20:16:56,285 INFO L226 Difference]: Without dead ends: 1408 [2018-07-23 20:16:56,291 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 20:16:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2018-07-23 20:16:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1408. [2018-07-23 20:16:56,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2018-07-23 20:16:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1958 transitions. [2018-07-23 20:16:56,338 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1958 transitions. Word has length 130 [2018-07-23 20:16:56,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:16:56,338 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1958 transitions. [2018-07-23 20:16:56,338 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 20:16:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1958 transitions. [2018-07-23 20:16:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 20:16:56,343 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:16:56,344 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, 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] [2018-07-23 20:16:56,344 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 20:16:56,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1470650841, now seen corresponding path program 1 times [2018-07-23 20:16:56,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:16:56,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:56,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:16:56,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:56,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:16:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:16:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:16:56,602 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:16:56,602 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:16:56,602 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-07-23 20:16:56,602 INFO L201 CegarAbsIntRunner]: [0], [3], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [44], [48], [52], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [107], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [411], [413], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-23 20:16:56,610 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:16:56,610 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 20:18:33,476 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 20:18:33,477 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 20:18:33,478 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 20:18:33,478 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:18:33,478 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 20:18:33,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:18:33,489 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 20:18:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:18:33,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 20:18:33,662 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 20:18:33,864 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 20:18:33,865 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:18:33,871 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:18:33,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:18:33 BoogieIcfgContainer [2018-07-23 20:18:33,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:18:33,873 INFO L168 Benchmark]: Toolchain (without parser) took 261076.55 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 172.2 MB. Max. memory is 7.1 GB. [2018-07-23 20:18:33,874 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:18:33,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.34 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 20:18:33,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.17 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:18:33,876 INFO L168 Benchmark]: Boogie Preprocessor took 115.53 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 20:18:33,877 INFO L168 Benchmark]: RCFGBuilder took 3690.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -772.0 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2018-07-23 20:18:33,878 INFO L168 Benchmark]: TraceAbstraction took 256358.77 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. [2018-07-23 20:18:33,883 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.34 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 128.17 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.53 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. * RCFGBuilder took 3690.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -772.0 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256358.77 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 446]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 446). Cancelled while BasicCegarLoop was analyzing trace of length 142 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, 208 locations, 1 error locations. TIMEOUT Result, 256.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 48.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 630 SDtfs, 1760 SDslu, 703 SDs, 0 SdLazy, 3138 SolverSat, 655 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 164 GetRequests, 121 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1408occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 188.5s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9931393998325365 AbsIntWeakeningRatio, 0.2713178294573643 AbsIntAvgWeakeningVarsNumRemoved, 188.89922480620154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 444 NumberOfCodeBlocks, 444 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 114726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 54/56 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label02_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-18-33-911.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label02_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-18-33-911.csv Completed graceful shutdown