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/Problem18_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:06:58,983 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:06:58,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:06:58,999 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:06:58,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:06:59,000 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:06:59,002 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:06:59,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:06:59,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:06:59,006 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:06:59,007 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:06:59,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:06:59,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:06:59,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:06:59,011 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:06:59,012 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:06:59,012 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:06:59,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:06:59,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:06:59,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:06:59,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:06:59,021 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:06:59,023 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 23:06:59,024 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 23:06:59,024 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 23:06:59,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 23:06:59,026 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 23:06:59,027 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 23:06:59,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 23:06:59,029 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 23:06:59,030 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 23:06:59,030 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 23:06:59,031 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 23:06:59,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 23:06:59,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 23:06:59,033 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 23:06:59,033 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 23:06:59,050 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:06:59,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:06:59,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:06:59,051 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 23:06:59,052 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 23:06:59,052 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 23:06:59,052 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 23:06:59,052 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 23:06:59,053 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 23:06:59,053 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 23:06:59,053 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 23:06:59,054 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:06:59,054 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:06:59,054 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:06:59,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:06:59,055 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:06:59,055 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:06:59,055 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:06:59,055 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:06:59,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:06:59,056 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:06:59,056 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:06:59,056 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:06:59,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:06:59,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:06:59,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:06:59,057 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:06:59,057 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 23:06:59,058 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:06:59,058 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:06:59,058 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:06:59,058 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:06:59,058 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 23:06:59,113 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:06:59,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:06:59,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:06:59,135 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:06:59,136 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:06:59,136 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label17_true-unreach-call.c [2018-07-23 23:06:59,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc4b9fe5/0106ef0b24eb4060aeff6217008f6fa4/FLAG37cda5be7 [2018-07-23 23:06:59,901 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:06:59,902 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label17_true-unreach-call.c [2018-07-23 23:06:59,944 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc4b9fe5/0106ef0b24eb4060aeff6217008f6fa4/FLAG37cda5be7 [2018-07-23 23:06:59,969 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc4b9fe5/0106ef0b24eb4060aeff6217008f6fa4 [2018-07-23 23:06:59,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:06:59,985 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:06:59,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:06:59,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:06:59,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:07:00,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:06:59" (1/1) ... [2018-07-23 23:07:00,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd8592f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:00, skipping insertion in model container [2018-07-23 23:07:00,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:06:59" (1/1) ... [2018-07-23 23:07:00,347 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:07:01,145 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:07:01,162 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:07:01,973 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:07:02,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02 WrapperNode [2018-07-23 23:07:02,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:07:02,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:07:02,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:07:02,131 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:07:02,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:02,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:02,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:07:02,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:07:02,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:07:02,322 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:07:02,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:02,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:02,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:02,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:02,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:02,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:03,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (1/1) ... [2018-07-23 23:07:03,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:07:03,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:07:03,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:07:03,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:07:03,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (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 23:07:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 23:07:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 23:07:03,128 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 23:07:03,128 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 23:07:03,129 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 23:07:03,129 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 23:07:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:07:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:07:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 23:07:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 23:07:03,130 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 23:07:03,130 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 23:07:10,661 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:07:10,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:07:10 BoogieIcfgContainer [2018-07-23 23:07:10,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:07:10,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:07:10,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:07:10,668 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:07:10,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:06:59" (1/3) ... [2018-07-23 23:07:10,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11155342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:07:10, skipping insertion in model container [2018-07-23 23:07:10,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:07:02" (2/3) ... [2018-07-23 23:07:10,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11155342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:07:10, skipping insertion in model container [2018-07-23 23:07:10,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:07:10" (3/3) ... [2018-07-23 23:07:10,672 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label17_true-unreach-call.c [2018-07-23 23:07:10,680 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:07:10,690 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:07:10,757 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:07:10,758 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:07:10,758 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:07:10,758 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:07:10,758 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:07:10,759 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:07:10,759 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:07:10,759 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:07:10,759 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:07:10,801 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-23 23:07:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 23:07:10,809 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:07:10,811 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] [2018-07-23 23:07:10,811 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 23:07:10,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1446966940, now seen corresponding path program 1 times [2018-07-23 23:07:10,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:07:10,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:10,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:07:10,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:10,881 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:07:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:07:11,291 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 23:07:11,295 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:07:11,295 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:07:11,295 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:07:11,303 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:07:11,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:07:11,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:07:11,322 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-23 23:07:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:07:18,652 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-23 23:07:18,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:07:18,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-07-23 23:07:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:07:18,695 INFO L225 Difference]: With dead ends: 2251 [2018-07-23 23:07:18,695 INFO L226 Difference]: Without dead ends: 1474 [2018-07-23 23:07:18,707 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:07:18,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-23 23:07:18,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-23 23:07:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-23 23:07:18,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-07-23 23:07:18,876 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 38 [2018-07-23 23:07:18,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:07:18,877 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-07-23 23:07:18,877 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:07:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-07-23 23:07:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 23:07:18,884 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:07:18,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:18,885 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 23:07:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1977604847, now seen corresponding path program 1 times [2018-07-23 23:07:18,886 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:07:18,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:18,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:07:18,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:18,887 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:07:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:07:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:07:19,251 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:07:19,251 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 23:07:19,252 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:07:19,254 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 23:07:19,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 23:07:19,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:07:19,255 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-07-23 23:07:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:07:36,923 INFO L93 Difference]: Finished difference Result 5908 states and 11488 transitions. [2018-07-23 23:07:36,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 23:07:36,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-07-23 23:07:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:07:36,962 INFO L225 Difference]: With dead ends: 5908 [2018-07-23 23:07:36,963 INFO L226 Difference]: Without dead ends: 4440 [2018-07-23 23:07:36,982 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 23:07:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4440 states. [2018-07-23 23:07:37,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4440 to 4400. [2018-07-23 23:07:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4400 states. [2018-07-23 23:07:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 6699 transitions. [2018-07-23 23:07:37,130 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 6699 transitions. Word has length 113 [2018-07-23 23:07:37,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:07:37,131 INFO L471 AbstractCegarLoop]: Abstraction has 4400 states and 6699 transitions. [2018-07-23 23:07:37,131 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 23:07:37,131 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 6699 transitions. [2018-07-23 23:07:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 23:07:37,137 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:07:37,137 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:37,137 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 23:07:37,138 INFO L82 PathProgramCache]: Analyzing trace with hash -733264343, now seen corresponding path program 1 times [2018-07-23 23:07:37,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:07:37,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:37,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:07:37,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:37,140 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:07:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:07:37,409 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 23:07:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:07:37,578 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:07:37,578 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 23:07:37,578 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:07:37,579 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 23:07:37,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 23:07:37,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:07:37,580 INFO L87 Difference]: Start difference. First operand 4400 states and 6699 transitions. Second operand 6 states. [2018-07-23 23:07:47,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:07:47,886 INFO L93 Difference]: Finished difference Result 13327 states and 20920 transitions. [2018-07-23 23:07:47,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:07:47,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-07-23 23:07:47,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:07:47,942 INFO L225 Difference]: With dead ends: 13327 [2018-07-23 23:07:47,942 INFO L226 Difference]: Without dead ends: 8933 [2018-07-23 23:07:47,968 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:07:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8933 states. [2018-07-23 23:07:48,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8933 to 8830. [2018-07-23 23:07:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8830 states. [2018-07-23 23:07:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8830 states to 8830 states and 12821 transitions. [2018-07-23 23:07:48,204 INFO L78 Accepts]: Start accepts. Automaton has 8830 states and 12821 transitions. Word has length 133 [2018-07-23 23:07:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:07:48,205 INFO L471 AbstractCegarLoop]: Abstraction has 8830 states and 12821 transitions. [2018-07-23 23:07:48,205 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 23:07:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 8830 states and 12821 transitions. [2018-07-23 23:07:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-23 23:07:48,213 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:07:48,213 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, 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] [2018-07-23 23:07:48,213 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 23:07:48,214 INFO L82 PathProgramCache]: Analyzing trace with hash -2105439133, now seen corresponding path program 1 times [2018-07-23 23:07:48,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:07:48,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:48,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:07:48,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:07:48,215 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:07:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:07:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 62 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 23:07:48,438 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:07:48,438 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 23:07:48,439 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-07-23 23:07:48,441 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], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [494], [495], [499], [503], [507], [511], [514], [1374], [2116], [2120], [2126], [2130], [2132], [3023], [3024], [3025], [3027], [3028] [2018-07-23 23:07:48,503 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 23:07:48,504 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 23:07:51,562 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 23:07:51,564 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 23:07:51,609 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 23:07:53,877 INFO L232 lantSequenceWeakener]: Weakened 175 states. On average, predicates are now at 77.91% of their original sizes. [2018-07-23 23:07:53,877 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 23:07:54,301 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 23:07:54,302 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:07:54,303 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-07-23 23:07:54,303 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:07:54,304 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 23:07:54,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 23:07:54,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:07:54,304 INFO L87 Difference]: Start difference. First operand 8830 states and 12821 transitions. Second operand 7 states. [2018-07-23 23:08:10,371 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 23:09:29,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:09:29,570 INFO L93 Difference]: Finished difference Result 18359 states and 26574 transitions. [2018-07-23 23:09:29,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:09:29,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2018-07-23 23:09:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:09:29,608 INFO L225 Difference]: With dead ends: 18359 [2018-07-23 23:09:29,608 INFO L226 Difference]: Without dead ends: 9535 [2018-07-23 23:09:29,630 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 23:09:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9535 states. [2018-07-23 23:09:29,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9535 to 9533. [2018-07-23 23:09:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9533 states. [2018-07-23 23:09:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9533 states to 9533 states and 13536 transitions. [2018-07-23 23:09:29,845 INFO L78 Accepts]: Start accepts. Automaton has 9533 states and 13536 transitions. Word has length 183 [2018-07-23 23:09:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:09:29,846 INFO L471 AbstractCegarLoop]: Abstraction has 9533 states and 13536 transitions. [2018-07-23 23:09:29,846 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 23:09:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 9533 states and 13536 transitions. [2018-07-23 23:09:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-07-23 23:09:29,855 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:09:29,856 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:29,856 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 23:09:29,856 INFO L82 PathProgramCache]: Analyzing trace with hash -334844362, now seen corresponding path program 1 times [2018-07-23 23:09:29,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:09:29,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:09:29,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:09:29,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:09:29,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:09:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:09:30,343 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 23:09:30,541 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 23:09:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 152 proven. 151 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 23:09:31,029 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:09:31,029 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 23:09:31,029 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 371 with the following transitions: [2018-07-23 23:09:31,030 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], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [494], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [935], [939], [943], [947], [951], [955], [959], [962], [1374], [2116], [2120], [2126], [2130], [2132], [3023], [3024], [3025], [3027], [3028] [2018-07-23 23:09:31,041 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 23:09:31,041 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 23:09:59,118 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 23:09:59,119 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 23:09:59,125 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 23:10:09,939 INFO L232 lantSequenceWeakener]: Weakened 368 states. On average, predicates are now at 77.63% of their original sizes. [2018-07-23 23:10:09,939 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 23:10:11,111 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 23:10:11,112 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:10:11,112 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-23 23:10:11,112 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:10:11,116 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 23:10:11,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 23:10:11,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 23:10:11,117 INFO L87 Difference]: Start difference. First operand 9533 states and 13536 transitions. Second operand 11 states. Received shutdown request... [2018-07-23 23:10:52,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 23:10:52,243 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 23:10:52,248 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 23:10:52,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:10:52 BoogieIcfgContainer [2018-07-23 23:10:52,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:10:52,249 INFO L168 Benchmark]: Toolchain (without parser) took 232265.51 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -824.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-23 23:10:52,250 INFO L168 Benchmark]: CDTParser took 0.21 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 23:10:52,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2142.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 180.0 MB). Peak memory consumption was 180.0 MB. Max. memory is 7.1 GB. [2018-07-23 23:10:52,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 191.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 23:10:52,252 INFO L168 Benchmark]: Boogie Preprocessor took 728.71 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 838.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-07-23 23:10:52,253 INFO L168 Benchmark]: RCFGBuilder took 7612.21 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 541.6 MB). Peak memory consumption was 541.6 MB. Max. memory is 7.1 GB. [2018-07-23 23:10:52,254 INFO L168 Benchmark]: TraceAbstraction took 221584.33 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -517.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-23 23:10:52,259 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2142.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 180.0 MB). Peak memory consumption was 180.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 191.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 728.71 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 838.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7612.21 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 541.6 MB). Peak memory consumption was 541.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221584.33 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -517.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 102). Cancelled while BasicCegarLoop was constructing difference of abstraction (9533states) and interpolant automaton (currently 13 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (351 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 221.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 171.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1184 SDtfs, 9245 SDslu, 733 SDs, 0 SdLazy, 17456 SolverSat, 4873 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 121.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 585 GetRequests, 518 SyntacticMatches, 29 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9533occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 31.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9955647176411795 AbsIntWeakeningRatio, 0.10526315789473684 AbsIntAvgWeakeningVarsNumRemoved, 309.7259528130671 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 145 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 837 NumberOfCodeBlocks, 837 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 832 ConstructedInterpolants, 0 QuantifiedInterpolants, 1294930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 286/502 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/Problem18_label17_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-10-52-276.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label17_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-10-52-276.csv Completed graceful shutdown