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/Problem13_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:20:26,019 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:20:26,021 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:20:26,033 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:20:26,034 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:20:26,035 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:20:26,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:20:26,038 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:20:26,040 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:20:26,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:20:26,041 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:20:26,042 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:20:26,043 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:20:26,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:20:26,045 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:20:26,045 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:20:26,046 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:20:26,048 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:20:26,050 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:20:26,051 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:20:26,053 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:20:26,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:20:26,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 22:20:26,056 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 22:20:26,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 22:20:26,057 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 22:20:26,058 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 22:20:26,059 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 22:20:26,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 22:20:26,061 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 22:20:26,061 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 22:20:26,062 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 22:20:26,062 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:20:26,062 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:20:26,063 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:20:26,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:20:26,064 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 22:20:26,080 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:20:26,080 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:20:26,081 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:20:26,081 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:20:26,081 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:20:26,081 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:20:26,082 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:20:26,082 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:20:26,082 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:20:26,082 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:20:26,082 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:20:26,083 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:20:26,083 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:20:26,084 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:20:26,084 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:20:26,084 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:20:26,084 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:20:26,084 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:20:26,084 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:20:26,085 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:20:26,085 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:20:26,085 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:20:26,085 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:20:26,085 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:20:26,086 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:20:26,086 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:20:26,086 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:20:26,086 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:20:26,087 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:20:26,087 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:20:26,087 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:20:26,087 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:20:26,087 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:20:26,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:20:26,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:20:26,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:20:26,149 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:20:26,150 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:20:26,150 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label18_true-unreach-call.c [2018-07-23 22:20:26,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c832aaf7/c86bf3bc1a104d6a86ae25bce95aa6f7/FLAG8242b2cf7 [2018-07-23 22:20:26,994 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:20:26,995 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label18_true-unreach-call.c [2018-07-23 22:20:27,032 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c832aaf7/c86bf3bc1a104d6a86ae25bce95aa6f7/FLAG8242b2cf7 [2018-07-23 22:20:27,048 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c832aaf7/c86bf3bc1a104d6a86ae25bce95aa6f7 [2018-07-23 22:20:27,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:20:27,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:20:27,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:20:27,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:20:27,070 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:20:27,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:20:27" (1/1) ... [2018-07-23 22:20:27,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8b2370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:27, skipping insertion in model container [2018-07-23 22:20:27,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:20:27" (1/1) ... [2018-07-23 22:20:27,442 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:20:28,588 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:20:28,606 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:20:29,993 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:20:30,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30 WrapperNode [2018-07-23 22:20:30,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:20:30,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:20:30,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:20:30,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:20:30,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:30,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:30,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:20:30,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:20:30,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:20:30,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:20:31,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:31,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:31,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:31,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:31,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:31,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:31,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (1/1) ... [2018-07-23 22:20:32,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:20:32,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:20:32,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:20:32,017 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:20:32,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (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 22:20:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:20:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:20:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:20:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:20:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-23 22:20:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-23 22:20:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:20:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:20:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-23 22:20:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-23 22:20:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:20:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:20:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:20:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:20:44,396 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:20:44,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:20:44 BoogieIcfgContainer [2018-07-23 22:20:44,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:20:44,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:20:44,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:20:44,402 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:20:44,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:20:27" (1/3) ... [2018-07-23 22:20:44,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4494eed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:20:44, skipping insertion in model container [2018-07-23 22:20:44,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:30" (2/3) ... [2018-07-23 22:20:44,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4494eed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:20:44, skipping insertion in model container [2018-07-23 22:20:44,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:20:44" (3/3) ... [2018-07-23 22:20:44,405 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label18_true-unreach-call.c [2018-07-23 22:20:44,415 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:20:44,425 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:20:44,488 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:20:44,488 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:20:44,489 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:20:44,489 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:20:44,489 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:20:44,489 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:20:44,489 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:20:44,489 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:20:44,490 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:20:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-23 22:20:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-23 22:20:44,540 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:20:44,541 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] [2018-07-23 22:20:44,542 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:20:44,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1795030300, now seen corresponding path program 1 times [2018-07-23 22:20:44,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:20:44,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:44,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:20:44,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:44,602 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:20:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:20:45,060 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:20:45,211 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 22:20:45,213 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:20:45,214 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:20:45,214 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:20:45,220 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:20:45,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:20:45,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:20:45,238 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-23 22:20:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:20:55,068 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-07-23 22:20:55,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:20:55,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2018-07-23 22:20:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:20:55,104 INFO L225 Difference]: With dead ends: 3097 [2018-07-23 22:20:55,104 INFO L226 Difference]: Without dead ends: 1975 [2018-07-23 22:20:55,114 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:20:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-07-23 22:20:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-07-23 22:20:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-07-23 22:20:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-07-23 22:20:55,267 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 70 [2018-07-23 22:20:55,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:20:55,268 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-07-23 22:20:55,268 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:20:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-07-23 22:20:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 22:20:55,277 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:20:55,278 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:20:55,278 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:20:55,278 INFO L82 PathProgramCache]: Analyzing trace with hash -416850700, now seen corresponding path program 1 times [2018-07-23 22:20:55,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:20:55,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:55,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:20:55,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:55,280 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:20:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:20:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:20:55,546 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:20:55,547 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 22:20:55,547 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:20:55,549 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 22:20:55,549 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 22:20:55,549 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 22:20:55,550 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-07-23 22:21:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:21:13,596 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-07-23 22:21:13,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 22:21:13,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-07-23 22:21:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:21:13,632 INFO L225 Difference]: With dead ends: 5736 [2018-07-23 22:21:13,632 INFO L226 Difference]: Without dead ends: 3768 [2018-07-23 22:21:13,639 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:21:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-07-23 22:21:13,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-07-23 22:21:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-07-23 22:21:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-07-23 22:21:13,778 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 146 [2018-07-23 22:21:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:21:13,778 INFO L471 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-07-23 22:21:13,779 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 22:21:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-07-23 22:21:13,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-07-23 22:21:13,791 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:21:13,792 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:21:13,792 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:21:13,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1038744040, now seen corresponding path program 1 times [2018-07-23 22:21:13,792 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:21:13,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:13,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:21:13,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:13,794 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:21:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:21:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:21:14,089 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:21:14,089 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 22:21:14,089 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:21:14,090 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 22:21:14,090 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 22:21:14,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 22:21:14,091 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-07-23 22:21:32,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:21:32,229 INFO L93 Difference]: Finished difference Result 12385 states and 19155 transitions. [2018-07-23 22:21:32,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 22:21:32,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2018-07-23 22:21:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:21:32,273 INFO L225 Difference]: With dead ends: 12385 [2018-07-23 22:21:32,273 INFO L226 Difference]: Without dead ends: 8705 [2018-07-23 22:21:32,293 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:21:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states. [2018-07-23 22:21:32,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8670. [2018-07-23 22:21:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8670 states. [2018-07-23 22:21:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8670 states to 8670 states and 12398 transitions. [2018-07-23 22:21:32,518 INFO L78 Accepts]: Start accepts. Automaton has 8670 states and 12398 transitions. Word has length 160 [2018-07-23 22:21:32,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:21:32,519 INFO L471 AbstractCegarLoop]: Abstraction has 8670 states and 12398 transitions. [2018-07-23 22:21:32,519 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 22:21:32,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8670 states and 12398 transitions. [2018-07-23 22:21:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-07-23 22:21:32,526 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:21:32,526 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:21:32,526 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:21:32,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1259500764, now seen corresponding path program 1 times [2018-07-23 22:21:32,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:21:32,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:32,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:21:32,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:32,528 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:21:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:21:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:21:32,818 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:21:32,818 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 22:21:32,819 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:21:32,819 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 22:21:32,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 22:21:32,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:21:32,820 INFO L87 Difference]: Start difference. First operand 8670 states and 12398 transitions. Second operand 4 states. [2018-07-23 22:21:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:21:48,163 INFO L93 Difference]: Finished difference Result 33577 states and 50474 transitions. [2018-07-23 22:21:48,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 22:21:48,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-07-23 22:21:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:21:48,315 INFO L225 Difference]: With dead ends: 33577 [2018-07-23 22:21:48,315 INFO L226 Difference]: Without dead ends: 24913 [2018-07-23 22:21:48,371 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:21:48,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24913 states. [2018-07-23 22:21:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24913 to 24886. [2018-07-23 22:21:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24886 states. [2018-07-23 22:21:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24886 states to 24886 states and 34223 transitions. [2018-07-23 22:21:49,048 INFO L78 Accepts]: Start accepts. Automaton has 24886 states and 34223 transitions. Word has length 186 [2018-07-23 22:21:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:21:49,049 INFO L471 AbstractCegarLoop]: Abstraction has 24886 states and 34223 transitions. [2018-07-23 22:21:49,050 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 22:21:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 24886 states and 34223 transitions. [2018-07-23 22:21:49,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-07-23 22:21:49,064 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:21:49,064 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-07-23 22:21:49,064 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:21:49,065 INFO L82 PathProgramCache]: Analyzing trace with hash 709560951, now seen corresponding path program 1 times [2018-07-23 22:21:49,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:21:49,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:49,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:21:49,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:49,066 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:21:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:21:49,719 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:21:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 127 proven. 9 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-23 22:21:50,196 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:21:50,196 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:21:50,197 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 278 with the following transitions: [2018-07-23 22:21:50,200 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [522], [526], [529], [530], [534], [538], [542], [553], [557], [561], [565], [569], [573], [577], [581], [592], [596], [600], [604], [608], [612], [616], [620], [624], [628], [632], [636], [640], [644], [648], [652], [656], [660], [664], [668], [679], [683], [687], [691], [695], [699], [703], [707], [718], [729], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [783], [1612], [3064], [3068], [3074], [3078], [3080], [4267], [4268], [4269], [4271], [4272] [2018-07-23 22:21:50,282 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:21:50,282 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:22:27,765 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:22:27,766 INFO L272 AbstractInterpreter]: Visited 138 different actions 269 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-07-23 22:22:27,808 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:22:47,234 INFO L232 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 71.65% of their original sizes. [2018-07-23 22:22:47,235 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:22:51,513 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:22:51,515 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:22:51,516 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-07-23 22:22:51,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:22:51,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 22:22:51,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 22:22:51,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-07-23 22:22:51,517 INFO L87 Difference]: Start difference. First operand 24886 states and 34223 transitions. Second operand 12 states. [2018-07-23 22:24:07,522 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 22:24:23,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 22:24:23,740 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:24:23,745 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:24:23,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:24:23 BoogieIcfgContainer [2018-07-23 22:24:23,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:24:23,746 INFO L168 Benchmark]: Toolchain (without parser) took 236686.34 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -188.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-07-23 22:24:23,747 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 22:24:23,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3350.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-07-23 22:24:23,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 332.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:24:23,750 INFO L168 Benchmark]: Boogie Preprocessor took 1269.98 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 980.4 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:24:23,750 INFO L168 Benchmark]: RCFGBuilder took 12380.57 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 170.4 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 79.2 MB). Peak memory consumption was 743.6 MB. Max. memory is 7.1 GB. [2018-07-23 22:24:23,751 INFO L168 Benchmark]: TraceAbstraction took 219347.57 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.5 GB). Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 644.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-23 22:24:23,763 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3350.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 332.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1269.98 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 980.4 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12380.57 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 170.4 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 79.2 MB). Peak memory consumption was 743.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219347.57 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.5 GB). Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 644.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 201]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 201). Cancelled while BasicCegarLoop was constructing difference of abstraction (24886states) and interpolant automaton (currently 14 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (1119 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 219.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 153.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2502 SDtfs, 11196 SDslu, 1730 SDs, 0 SdLazy, 20384 SolverSat, 4962 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 127.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 312 GetRequests, 219 SyntacticMatches, 60 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24886occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 37.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9959197324414711 AbsIntWeakeningRatio, 0.09782608695652174 AbsIntAvgWeakeningVarsNumRemoved, 30.717391304347824 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 145 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 834 ConstructedInterpolants, 0 QuantifiedInterpolants, 391214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 383/392 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/Problem13_label18_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-24-23-779.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label18_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-24-23-779.csv Completed graceful shutdown