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/Problem06_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 11:43:19,458 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 11:43:19,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 11:43:19,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 11:43:19,473 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 11:43:19,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 11:43:19,475 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 11:43:19,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 11:43:19,481 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 11:43:19,482 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 11:43:19,483 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 11:43:19,483 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 11:43:19,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 11:43:19,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 11:43:19,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 11:43:19,492 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 11:43:19,493 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 11:43:19,494 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 11:43:19,508 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 11:43:19,509 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 11:43:19,510 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 11:43:19,511 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 11:43:19,513 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 11:43:19,514 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 11:43:19,514 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 11:43:19,515 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 11:43:19,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 11:43:19,522 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 11:43:19,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 11:43:19,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 11:43:19,524 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 11:43:19,524 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 11:43:19,524 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 11:43:19,525 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 11:43:19,531 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 11:43:19,532 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 11:43:19,532 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 11:43:19,560 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 11:43:19,560 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 11:43:19,561 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 11:43:19,561 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 11:43:19,561 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 11:43:19,561 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 11:43:19,561 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 11:43:19,562 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 11:43:19,563 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 11:43:19,563 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 11:43:19,563 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 11:43:19,563 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 11:43:19,564 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 11:43:19,564 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 11:43:19,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 11:43:19,565 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 11:43:19,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 11:43:19,565 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 11:43:19,565 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 11:43:19,565 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 11:43:19,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 11:43:19,567 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 11:43:19,567 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 11:43:19,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 11:43:19,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 11:43:19,568 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 11:43:19,568 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 11:43:19,568 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 11:43:19,568 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 11:43:19,568 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 11:43:19,568 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 11:43:19,569 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 11:43:19,569 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 11:43:19,569 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 11:43:19,569 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 11:43:19,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 11:43:19,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 11:43:19,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 11:43:19,652 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 11:43:19,652 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 11:43:19,653 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label34_true-unreach-call.c [2018-07-21 11:43:20,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6761c3552/c4a86135418747f1a37afeb0c60dcf04/FLAG6da692cdb [2018-07-21 11:43:20,738 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 11:43:20,738 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label34_true-unreach-call.c [2018-07-21 11:43:20,793 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6761c3552/c4a86135418747f1a37afeb0c60dcf04/FLAG6da692cdb [2018-07-21 11:43:20,810 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6761c3552/c4a86135418747f1a37afeb0c60dcf04 [2018-07-21 11:43:20,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 11:43:20,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 11:43:20,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 11:43:20,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 11:43:20,834 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 11:43:20,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:43:20" (1/1) ... [2018-07-21 11:43:20,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1344eb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:20, skipping insertion in model container [2018-07-21 11:43:20,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:43:20" (1/1) ... [2018-07-21 11:43:21,377 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 11:43:23,547 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 11:43:23,567 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 11:43:25,089 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 11:43:25,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25 WrapperNode [2018-07-21 11:43:25,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 11:43:25,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 11:43:25,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 11:43:25,450 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 11:43:25,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 11:43:25,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 11:43:25,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 11:43:25,615 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 11:43:25,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:25,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (1/1) ... [2018-07-21 11:43:26,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 11:43:26,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 11:43:26,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 11:43:26,030 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 11:43:26,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (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 11:43:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 11:43:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 11:43:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 11:43:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 11:43:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 11:43:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 11:43:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 11:43:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 11:43:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 11:43:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 11:43:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 11:43:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 11:43:26,837 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 11:43:26,839 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 11:43:26,839 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 11:43:26,839 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 11:43:39,540 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 11:43:39,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:43:39 BoogieIcfgContainer [2018-07-21 11:43:39,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 11:43:39,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 11:43:39,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 11:43:39,556 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 11:43:39,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:43:20" (1/3) ... [2018-07-21 11:43:39,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547ffabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:43:39, skipping insertion in model container [2018-07-21 11:43:39,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:25" (2/3) ... [2018-07-21 11:43:39,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547ffabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:43:39, skipping insertion in model container [2018-07-21 11:43:39,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:43:39" (3/3) ... [2018-07-21 11:43:39,561 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label34_true-unreach-call.c [2018-07-21 11:43:39,575 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 11:43:39,593 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 11:43:39,682 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 11:43:39,683 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 11:43:39,683 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 11:43:39,683 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 11:43:39,683 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 11:43:39,683 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 11:43:39,684 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 11:43:39,684 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 11:43:39,684 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 11:43:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states. [2018-07-21 11:43:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2018-07-21 11:43:39,829 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 11:43:39,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:39,833 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 11:43:39,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1740991492, now seen corresponding path program 1 times [2018-07-21 11:43:39,843 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 11:43:39,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:43:39,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 11:43:39,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:43:39,906 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 11:43:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 11:43:43,356 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 11:43:43,358 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 11:43:43,358 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 11:43:43,358 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 11:43:43,364 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 11:43:43,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 11:43:43,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 11:43:43,379 INFO L87 Difference]: Start difference. First operand 1316 states. Second operand 3 states. [2018-07-21 11:43:50,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 11:43:50,195 INFO L93 Difference]: Finished difference Result 3736 states and 6973 transitions. [2018-07-21 11:43:50,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 11:43:50,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 994 [2018-07-21 11:43:50,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 11:43:50,249 INFO L225 Difference]: With dead ends: 3736 [2018-07-21 11:43:50,249 INFO L226 Difference]: Without dead ends: 2418 [2018-07-21 11:43:50,271 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 11:43:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2018-07-21 11:43:50,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2399. [2018-07-21 11:43:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2399 states. [2018-07-21 11:43:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 4263 transitions. [2018-07-21 11:43:50,488 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 4263 transitions. Word has length 994 [2018-07-21 11:43:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 11:43:50,495 INFO L471 AbstractCegarLoop]: Abstraction has 2399 states and 4263 transitions. [2018-07-21 11:43:50,495 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 11:43:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 4263 transitions. [2018-07-21 11:43:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1004 [2018-07-21 11:43:50,572 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 11:43:50,573 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:50,573 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 11:43:50,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1689948940, now seen corresponding path program 1 times [2018-07-21 11:43:50,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 11:43:50,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:43:50,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 11:43:50,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:43:50,576 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 11:43:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 11:43:51,060 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-07-21 11:43:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 11:43:52,151 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 11:43:52,151 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 11:43:52,151 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 11:43:52,155 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 11:43:52,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 11:43:52,155 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 11:43:52,155 INFO L87 Difference]: Start difference. First operand 2399 states and 4263 transitions. Second operand 5 states. [2018-07-21 11:43:52,891 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-21 11:44:02,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 11:44:02,923 INFO L93 Difference]: Finished difference Result 7216 states and 12902 transitions. [2018-07-21 11:44:02,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-21 11:44:02,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1003 [2018-07-21 11:44:02,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 11:44:02,960 INFO L225 Difference]: With dead ends: 7216 [2018-07-21 11:44:02,960 INFO L226 Difference]: Without dead ends: 4823 [2018-07-21 11:44:02,967 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-21 11:44:02,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4823 states. [2018-07-21 11:44:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4823 to 4762. [2018-07-21 11:44:03,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4762 states. [2018-07-21 11:44:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 8504 transitions. [2018-07-21 11:44:03,202 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 8504 transitions. Word has length 1003 [2018-07-21 11:44:03,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 11:44:03,203 INFO L471 AbstractCegarLoop]: Abstraction has 4762 states and 8504 transitions. [2018-07-21 11:44:03,203 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 11:44:03,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 8504 transitions. [2018-07-21 11:44:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2018-07-21 11:44:03,234 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 11:44:03,235 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:03,235 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 11:44:03,236 INFO L82 PathProgramCache]: Analyzing trace with hash -17367504, now seen corresponding path program 1 times [2018-07-21 11:44:03,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 11:44:03,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:44:03,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 11:44:03,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:44:03,237 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 11:44:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 11:44:03,723 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 11:44:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 11:44:04,369 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 11:44:04,369 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 11:44:04,369 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 11:44:04,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 11:44:04,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 11:44:04,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 11:44:04,372 INFO L87 Difference]: Start difference. First operand 4762 states and 8504 transitions. Second operand 6 states. [2018-07-21 11:44:11,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 11:44:11,488 INFO L93 Difference]: Finished difference Result 11885 states and 21290 transitions. [2018-07-21 11:44:11,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 11:44:11,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1005 [2018-07-21 11:44:11,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 11:44:11,537 INFO L225 Difference]: With dead ends: 11885 [2018-07-21 11:44:11,537 INFO L226 Difference]: Without dead ends: 7129 [2018-07-21 11:44:11,550 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 11:44:11,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2018-07-21 11:44:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 6999. [2018-07-21 11:44:11,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6999 states. [2018-07-21 11:44:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 11319 transitions. [2018-07-21 11:44:11,790 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 11319 transitions. Word has length 1005 [2018-07-21 11:44:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 11:44:11,791 INFO L471 AbstractCegarLoop]: Abstraction has 6999 states and 11319 transitions. [2018-07-21 11:44:11,791 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 11:44:11,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 11319 transitions. [2018-07-21 11:44:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2018-07-21 11:44:11,825 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 11:44:11,826 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:11,826 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 11:44:11,827 INFO L82 PathProgramCache]: Analyzing trace with hash 360396309, now seen corresponding path program 1 times [2018-07-21 11:44:11,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 11:44:11,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:44:11,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 11:44:11,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:44:11,829 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 11:44:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 11:44:12,235 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 11:44:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 11:44:13,130 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 11:44:13,130 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 11:44:13,130 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 11:44:13,132 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 11:44:13,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 11:44:13,132 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 11:44:13,132 INFO L87 Difference]: Start difference. First operand 6999 states and 11319 transitions. Second operand 6 states. [2018-07-21 11:44:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 11:44:20,275 INFO L93 Difference]: Finished difference Result 21385 states and 36039 transitions. [2018-07-21 11:44:20,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 11:44:20,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1015 [2018-07-21 11:44:20,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 11:44:20,351 INFO L225 Difference]: With dead ends: 21385 [2018-07-21 11:44:20,351 INFO L226 Difference]: Without dead ends: 14392 [2018-07-21 11:44:20,371 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 11:44:20,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14392 states. [2018-07-21 11:44:20,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14392 to 13966. [2018-07-21 11:44:20,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13966 states. [2018-07-21 11:44:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13966 states to 13966 states and 22471 transitions. [2018-07-21 11:44:20,770 INFO L78 Accepts]: Start accepts. Automaton has 13966 states and 22471 transitions. Word has length 1015 [2018-07-21 11:44:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 11:44:20,770 INFO L471 AbstractCegarLoop]: Abstraction has 13966 states and 22471 transitions. [2018-07-21 11:44:20,770 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 11:44:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13966 states and 22471 transitions. [2018-07-21 11:44:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2018-07-21 11:44:20,820 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 11:44:20,821 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:20,821 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 11:44:20,822 INFO L82 PathProgramCache]: Analyzing trace with hash -339912321, now seen corresponding path program 1 times [2018-07-21 11:44:20,822 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 11:44:20,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:44:20,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 11:44:20,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 11:44:20,823 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 11:44:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 11:44:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 11:44:21,911 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 11:44:21,911 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 11:44:21,913 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 1042 with the following transitions: [2018-07-21 11:44:21,921 INFO L201 CegarAbsIntRunner]: [0], [4], [15], [26], [30], [34], [38], [49], [53], [57], [61], [65], [69], [80], [84], [88], [99], [103], [107], [111], [115], [119], [123], [127], [131], [135], [139], [143], [147], [151], [155], [159], [163], [167], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [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], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [710], [711], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2903], [2907], [2913], [2917], [2919], [2924], [2928], [2932], [2936], [2940], [2944], [2948], [2959], [2963], [2967], [2971], [2982], [2986], [2990], [2994], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3037], [3041], [3045], [3049], [3053], [3057], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3116], [3120], [3124], [3128], [3132], [3136], [3147], [3151], [3155], [3159], [3163], [3167], [3171], [3182], [3186], [3190], [3194], [3198], [3209], [3220], [3224], [3228], [3232], [3243], [3247], [3251], [3255], [3259], [3263], [3267], [3271], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3357], [3361], [3365], [3369], [3373], [3377], [3388], [3392], [3396], [3400], [3404], [3415], [3419], [3430], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3473], [3477], [3481], [3485], [3489], [3493], [3504], [3508], [3512], [3516], [3520], [3524], [3528], [3532], [3543], [3547], [3551], [3555], [3566], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3693], [3697], [3701], [3705], [3709], [3713], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3760], [3764], [3768], [3772], [3776], [3780], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3850], [3854], [3858], [3862], [3866], [3870], [3874], [3878], [3882], [3886], [3897], [3901], [3905], [3909], [3913], [3917], [3921], [3925], [3929], [3933], [3937], [3941], [3952], [3956], [3960], [3964], [3968], [3972], [3976], [3980], [3984], [3988], [3992], [3996], [3999], [4000], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4071], [4075], [4079], [4082], [4083], [4087], [4091], [4102], [4106], [4110], [4121], [4125], [4129], [4133], [4137], [4148], [4152], [4156], [4160], [4164], [4168], [4172], [4176], [4180], [4191], [4202], [4213], [4217], [4221], [4225], [4229], [4233], [4237], [4241], [4245], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4332], [4336], [4340], [4344], [4348], [4352], [4363], [4367], [4371], [4382], [4386], [4390], [4394], [4398], [4402], [4406], [4417], [4428], [4432], [4436], [4440], [4444], [4448], [4452], [4456], [4460], [4464], [4468], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4591], [4595], [4599], [4603], [4607], [4611], [4622], [4626], [4637], [4641], [4645], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4708], [4712], [4716], [4720], [4724], [4728], [4739], [4743], [4747], [4751], [4755], [4766], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4838], [4842], [4846], [4850], [4854], [4858], [4869], [4880], [4884], [4888], [4892], [4896], [4900], [4904], [4908], [4912], [4923], [4927], [4931], [4935], [4946], [4957], [4961], [4965], [4969], [4973], [4984], [4988], [4992], [4996], [5000], [5004], [5008], [5012], [5023], [5027], [5031], [5034], [5035], [5037], [5039], [5040], [5041], [5043], [5044], [5045], [5047] [2018-07-21 11:44:22,081 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 11:44:22,082 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown