java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 20:08:43,807 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 20:08:43,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 20:08:43,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 20:08:43,827 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 20:08:43,828 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 20:08:43,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 20:08:43,831 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 20:08:43,833 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 20:08:43,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 20:08:43,836 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 20:08:43,836 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 20:08:43,837 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 20:08:43,838 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 20:08:43,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 20:08:43,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 20:08:43,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 20:08:43,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 20:08:43,861 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 20:08:43,862 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 20:08:43,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 20:08:43,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 20:08:43,866 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 20:08:43,867 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 20:08:43,870 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 20:08:43,871 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 20:08:43,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 20:08:43,875 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 20:08:43,876 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 20:08:43,877 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 20:08:43,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 20:08:43,881 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 20:08:43,882 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 20:08:43,882 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 20:08:43,883 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 20:08:43,884 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 20:08:43,884 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 20:08:43,913 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 20:08:43,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 20:08:43,914 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 20:08:43,915 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 20:08:43,915 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 20:08:43,915 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 20:08:43,915 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 20:08:43,915 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 20:08:43,916 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 20:08:43,916 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 20:08:43,916 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 20:08:43,916 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 20:08:43,918 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 20:08:43,918 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 20:08:43,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 20:08:43,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 20:08:43,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 20:08:43,919 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 20:08:43,919 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 20:08:43,919 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 20:08:43,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 20:08:43,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 20:08:43,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 20:08:43,920 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 20:08:43,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 20:08:43,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 20:08:43,920 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 20:08:43,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 20:08:43,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 20:08:43,922 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 20:08:43,923 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 20:08:43,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 20:08:43,923 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 20:08:43,923 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 20:08:43,923 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 20:08:43,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 20:08:43,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 20:08:43,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 20:08:43,998 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 20:08:43,998 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 20:08:43,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-07-21 20:08:44,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/760c05e23/595865227a864bd197a7879ecfb74330/FLAGd1adeaf2d [2018-07-21 20:08:44,850 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 20:08:44,851 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-07-21 20:08:44,894 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/760c05e23/595865227a864bd197a7879ecfb74330/FLAGd1adeaf2d [2018-07-21 20:08:44,917 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/760c05e23/595865227a864bd197a7879ecfb74330 [2018-07-21 20:08:44,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 20:08:44,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 20:08:44,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 20:08:44,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 20:08:44,948 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 20:08:44,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:44" (1/1) ... [2018-07-21 20:08:44,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e40129b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:44, skipping insertion in model container [2018-07-21 20:08:44,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:44" (1/1) ... [2018-07-21 20:08:45,301 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 20:08:46,278 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:08:46,297 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 20:08:46,851 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:08:47,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47 WrapperNode [2018-07-21 20:08:47,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 20:08:47,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 20:08:47,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 20:08:47,186 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 20:08:47,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:47,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:47,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 20:08:47,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 20:08:47,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 20:08:47,469 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 20:08:47,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:47,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:47,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:47,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:47,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:48,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:48,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... [2018-07-21 20:08:48,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 20:08:48,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 20:08:48,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 20:08:48,452 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 20:08:48,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 20:08:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 20:08:48,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 20:08:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 20:08:48,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 20:08:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 20:08:48,525 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 20:08:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:08:48,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:08:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:08:48,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:08:59,307 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 20:08:59,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:59 BoogieIcfgContainer [2018-07-21 20:08:59,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 20:08:59,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 20:08:59,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 20:08:59,313 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 20:08:59,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:08:44" (1/3) ... [2018-07-21 20:08:59,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d250aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:59, skipping insertion in model container [2018-07-21 20:08:59,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:47" (2/3) ... [2018-07-21 20:08:59,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d250aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:59, skipping insertion in model container [2018-07-21 20:08:59,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:59" (3/3) ... [2018-07-21 20:08:59,318 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label58_true-unreach-call.c [2018-07-21 20:08:59,328 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 20:08:59,340 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 20:08:59,419 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 20:08:59,419 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 20:08:59,419 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 20:08:59,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 20:08:59,420 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 20:08:59,420 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 20:08:59,420 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 20:08:59,420 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 20:08:59,420 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 20:08:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-21 20:08:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-21 20:08:59,475 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:08:59,476 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:08:59,477 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:08:59,481 INFO L82 PathProgramCache]: Analyzing trace with hash -17826340, now seen corresponding path program 1 times [2018-07-21 20:08:59,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:08:59,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:08:59,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:08:59,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:08:59,538 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:08:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:08:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:08:59,989 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:08:59,989 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 20:08:59,989 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:08:59,995 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 20:09:00,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 20:09:00,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:09:00,014 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-21 20:09:10,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:09:10,556 INFO L93 Difference]: Finished difference Result 2125 states and 3954 transitions. [2018-07-21 20:09:10,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 20:09:10,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-07-21 20:09:10,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:09:10,591 INFO L225 Difference]: With dead ends: 2125 [2018-07-21 20:09:10,591 INFO L226 Difference]: Without dead ends: 1515 [2018-07-21 20:09:10,603 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:09:10,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2018-07-21 20:09:10,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1043. [2018-07-21 20:09:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-07-21 20:09:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1647 transitions. [2018-07-21 20:09:10,733 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1647 transitions. Word has length 52 [2018-07-21 20:09:10,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:09:10,733 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1647 transitions. [2018-07-21 20:09:10,734 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 20:09:10,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1647 transitions. [2018-07-21 20:09:10,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-21 20:09:10,743 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:09:10,743 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:09:10,744 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:09:10,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1885643914, now seen corresponding path program 1 times [2018-07-21 20:09:10,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:09:10,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:09:10,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:09:10,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:09:10,746 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:09:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:09:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:09:11,076 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:09:11,077 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:09:11,077 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:09:11,080 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:09:11,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:09:11,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:09:11,081 INFO L87 Difference]: Start difference. First operand 1043 states and 1647 transitions. Second operand 6 states. [2018-07-21 20:09:27,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:09:27,925 INFO L93 Difference]: Finished difference Result 3919 states and 6355 transitions. [2018-07-21 20:09:27,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:09:27,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-07-21 20:09:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:09:27,948 INFO L225 Difference]: With dead ends: 3919 [2018-07-21 20:09:27,948 INFO L226 Difference]: Without dead ends: 2882 [2018-07-21 20:09:27,958 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-21 20:09:27,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2018-07-21 20:09:28,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2873. [2018-07-21 20:09:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2018-07-21 20:09:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 3839 transitions. [2018-07-21 20:09:28,087 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 3839 transitions. Word has length 124 [2018-07-21 20:09:28,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:09:28,087 INFO L471 AbstractCegarLoop]: Abstraction has 2873 states and 3839 transitions. [2018-07-21 20:09:28,087 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:09:28,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 3839 transitions. [2018-07-21 20:09:28,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-21 20:09:28,100 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:09:28,100 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:09:28,100 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:09:28,101 INFO L82 PathProgramCache]: Analyzing trace with hash -636546326, now seen corresponding path program 1 times [2018-07-21 20:09:28,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:09:28,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:09:28,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:09:28,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:09:28,102 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:09:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:09:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:09:28,436 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:09:28,436 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 20:09:28,437 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 128 with the following transitions: [2018-07-21 20:09:28,439 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1050], [1052], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1207], [1215], [1223], [1228], [1232], [1236], [1240], [1244], [1247], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 20:09:28,500 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 20:09:28,500 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 20:09:34,591 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 20:09:53,913 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 20:09:53,916 INFO L272 AbstractInterpreter]: Visited 82 different actions 233 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-07-21 20:09:53,959 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 20:10:01,601 INFO L232 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 76.2% of their original sizes. [2018-07-21 20:10:01,601 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 20:10:34,851 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 20:10:34,851 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 20:10:34,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [54] imperfect sequences [7] total 59 [2018-07-21 20:10:34,852 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:10:34,852 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-21 20:10:34,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-21 20:10:34,856 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1022, Invalid=1840, Unknown=0, NotChecked=0, Total=2862 [2018-07-21 20:10:34,856 INFO L87 Difference]: Start difference. First operand 2873 states and 3839 transitions. Second operand 54 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown