java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 09:39:29,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 09:39:29,446 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 09:39:29,463 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 09:39:29,464 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 09:39:29,465 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 09:39:29,466 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 09:39:29,468 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 09:39:29,471 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 09:39:29,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 09:39:29,479 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 09:39:29,482 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 09:39:29,484 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 09:39:29,484 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 09:39:29,486 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 09:39:29,486 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 09:39:29,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 09:39:29,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 09:39:29,497 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 09:39:29,498 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 09:39:29,499 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 09:39:29,500 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 09:39:29,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 09:39:29,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 09:39:29,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 09:39:29,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 09:39:29,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 09:39:29,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 09:39:29,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 09:39:29,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 09:39:29,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 09:39:29,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 09:39:29,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 09:39:29,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 09:39:29,509 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 09:39:29,512 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 09:39:29,513 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-08-08 09:39:29,534 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 09:39:29,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 09:39:29,535 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 09:39:29,536 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 09:39:29,536 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 09:39:29,536 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 09:39:29,536 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 09:39:29,536 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 09:39:29,537 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-08-08 09:39:29,537 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 09:39:29,537 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 09:39:29,537 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 09:39:29,538 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 09:39:29,539 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 09:39:29,539 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 09:39:29,539 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 09:39:29,539 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 09:39:29,539 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 09:39:29,540 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 09:39:29,540 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 09:39:29,540 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 09:39:29,540 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 09:39:29,541 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 09:39:29,541 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 09:39:29,541 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 09:39:29,541 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 09:39:29,541 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 09:39:29,543 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 09:39:29,543 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 09:39:29,543 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 09:39:29,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 09:39:29,544 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 09:39:29,544 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 09:39:29,544 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 09:39:29,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 09:39:29,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 09:39:29,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 09:39:29,618 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 09:39:29,619 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 09:39:29,620 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c [2018-08-08 09:39:29,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82819e83c/1a1c2b1464a94993807378cc740c83e7/FLAG794c12b4e [2018-08-08 09:39:30,508 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 09:39:30,510 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c [2018-08-08 09:39:30,558 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82819e83c/1a1c2b1464a94993807378cc740c83e7/FLAG794c12b4e [2018-08-08 09:39:30,573 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82819e83c/1a1c2b1464a94993807378cc740c83e7 [2018-08-08 09:39:30,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 09:39:30,586 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 09:39:30,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 09:39:30,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 09:39:30,594 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 09:39:30,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 09:39:30" (1/1) ... [2018-08-08 09:39:30,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be3fd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:30, skipping insertion in model container [2018-08-08 09:39:30,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 09:39:30" (1/1) ... [2018-08-08 09:39:30,946 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 09:39:31,977 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 09:39:31,996 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 09:39:32,726 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 09:39:32,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32 WrapperNode [2018-08-08 09:39:32,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 09:39:32,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 09:39:32,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 09:39:32,886 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 09:39:32,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:32,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 09:39:33,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 09:39:33,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 09:39:33,025 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 09:39:33,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... [2018-08-08 09:39:33,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 09:39:33,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 09:39:33,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 09:39:33,660 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 09:39:33,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 09:39:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 09:39:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 09:39:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 09:39:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 09:39:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-08 09:39:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-08 09:39:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 09:39:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 09:39:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-08 09:39:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-08 09:39:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 09:39:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 09:39:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-08 09:39:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-08 09:39:44,974 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 09:39:44,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 09:39:44 BoogieIcfgContainer [2018-08-08 09:39:44,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 09:39:44,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 09:39:44,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 09:39:44,979 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 09:39:44,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 09:39:30" (1/3) ... [2018-08-08 09:39:44,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e7db17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 09:39:44, skipping insertion in model container [2018-08-08 09:39:44,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:39:32" (2/3) ... [2018-08-08 09:39:44,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e7db17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 09:39:44, skipping insertion in model container [2018-08-08 09:39:44,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 09:39:44" (3/3) ... [2018-08-08 09:39:44,983 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label10_true-unreach-call.c [2018-08-08 09:39:44,995 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 09:39:45,004 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 09:39:45,064 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 09:39:45,065 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 09:39:45,065 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 09:39:45,065 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 09:39:45,065 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 09:39:45,066 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 09:39:45,066 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 09:39:45,066 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 09:39:45,066 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 09:39:45,114 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-08-08 09:39:45,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2018-08-08 09:39:45,170 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:39:45,172 INFO L376 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] [2018-08-08 09:39:45,173 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:39:45,179 INFO L82 PathProgramCache]: Analyzing trace with hash 220634860, now seen corresponding path program 1 times [2018-08-08 09:39:45,182 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:39:45,186 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 824 with the following transitions: [2018-08-08 09:39:45,195 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3540] [2018-08-08 09:39:45,256 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:39:45,256 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:39:46,810 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:39:46,815 INFO L272 AbstractInterpreter]: Visited 822 different actions 822 times. Never merged. Never widened. Never found a fixpoint. Largest state had 43 variables. [2018-08-08 09:39:46,862 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:39:48,390 INFO L232 lantSequenceWeakener]: Weakened 820 states. On average, predicates are now at 78.67% of their original sizes. [2018-08-08 09:39:48,390 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:39:49,521 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:39:49,523 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:39:49,523 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 09:39:49,524 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:39:49,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 09:39:49,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 09:39:49,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-08-08 09:39:49,546 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 12 states. [2018-08-08 09:40:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:40:11,223 INFO L93 Difference]: Finished difference Result 2649 states and 5102 transitions. [2018-08-08 09:40:11,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-08-08 09:40:11,228 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 823 [2018-08-08 09:40:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:40:11,273 INFO L225 Difference]: With dead ends: 2649 [2018-08-08 09:40:11,274 INFO L226 Difference]: Without dead ends: 1740 [2018-08-08 09:40:11,284 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 826 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-08-08 09:40:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2018-08-08 09:40:11,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1738. [2018-08-08 09:40:11,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-08-08 09:40:11,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2558 transitions. [2018-08-08 09:40:11,439 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2558 transitions. Word has length 823 [2018-08-08 09:40:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:40:11,442 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 2558 transitions. [2018-08-08 09:40:11,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 09:40:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2558 transitions. [2018-08-08 09:40:11,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2018-08-08 09:40:11,475 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:40:11,476 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 09:40:11,476 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:40:11,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1334393577, now seen corresponding path program 1 times [2018-08-08 09:40:11,477 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:40:11,478 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 844 with the following transitions: [2018-08-08 09:40:11,479 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [885], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3539], [3540] [2018-08-08 09:40:11,490 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:40:11,490 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:40:14,006 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:40:14,006 INFO L272 AbstractInterpreter]: Visited 826 different actions 1646 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 44 variables. [2018-08-08 09:40:14,014 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:40:15,383 INFO L232 lantSequenceWeakener]: Weakened 840 states. On average, predicates are now at 78.68% of their original sizes. [2018-08-08 09:40:15,384 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:40:15,777 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:40:15,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:40:15,778 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 09:40:15,778 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:40:15,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 09:40:15,780 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 09:40:15,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-08-08 09:40:15,781 INFO L87 Difference]: Start difference. First operand 1738 states and 2558 transitions. Second operand 15 states. [2018-08-08 09:40:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:40:41,121 INFO L93 Difference]: Finished difference Result 3480 states and 5930 transitions. [2018-08-08 09:40:41,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-08-08 09:40:41,125 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 843 [2018-08-08 09:40:41,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:40:41,139 INFO L225 Difference]: With dead ends: 3480 [2018-08-08 09:40:41,139 INFO L226 Difference]: Without dead ends: 2583 [2018-08-08 09:40:41,143 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 858 GetRequests, 829 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2018-08-08 09:40:41,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2018-08-08 09:40:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2577. [2018-08-08 09:40:41,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2577 states. [2018-08-08 09:40:41,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 3414 transitions. [2018-08-08 09:40:41,208 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 3414 transitions. Word has length 843 [2018-08-08 09:40:41,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:40:41,210 INFO L480 AbstractCegarLoop]: Abstraction has 2577 states and 3414 transitions. [2018-08-08 09:40:41,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 09:40:41,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 3414 transitions. [2018-08-08 09:40:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2018-08-08 09:40:41,224 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:40:41,225 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 09:40:41,225 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:40:41,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1968736205, now seen corresponding path program 1 times [2018-08-08 09:40:41,226 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:40:41,226 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 851 with the following transitions: [2018-08-08 09:40:41,228 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [885], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3539], [3540] [2018-08-08 09:40:41,238 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:40:41,239 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:40:43,545 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:40:43,545 INFO L272 AbstractInterpreter]: Visited 826 different actions 1646 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 44 variables. [2018-08-08 09:40:43,558 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:40:44,841 INFO L232 lantSequenceWeakener]: Weakened 847 states. On average, predicates are now at 78.68% of their original sizes. [2018-08-08 09:40:44,842 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:40:45,125 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:40:45,126 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:40:45,126 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 09:40:45,126 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:40:45,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 09:40:45,128 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 09:40:45,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-08-08 09:40:45,128 INFO L87 Difference]: Start difference. First operand 2577 states and 3414 transitions. Second operand 15 states. [2018-08-08 09:41:02,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:41:02,246 INFO L93 Difference]: Finished difference Result 5158 states and 7643 transitions. [2018-08-08 09:41:02,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-08-08 09:41:02,247 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 850 [2018-08-08 09:41:02,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:41:02,263 INFO L225 Difference]: With dead ends: 5158 [2018-08-08 09:41:02,263 INFO L226 Difference]: Without dead ends: 3422 [2018-08-08 09:41:02,268 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 865 GetRequests, 836 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2018-08-08 09:41:02,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2018-08-08 09:41:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 3416. [2018-08-08 09:41:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3416 states. [2018-08-08 09:41:02,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 4272 transitions. [2018-08-08 09:41:02,342 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 4272 transitions. Word has length 850 [2018-08-08 09:41:02,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:41:02,344 INFO L480 AbstractCegarLoop]: Abstraction has 3416 states and 4272 transitions. [2018-08-08 09:41:02,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 09:41:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 4272 transitions. [2018-08-08 09:41:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2018-08-08 09:41:02,360 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:41:02,361 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 09:41:02,361 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:41:02,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1164676958, now seen corresponding path program 1 times [2018-08-08 09:41:02,362 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:41:02,362 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 862 with the following transitions: [2018-08-08 09:41:02,363 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [41], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [885], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3539], [3540] [2018-08-08 09:41:02,374 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:41:02,374 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:41:05,807 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:41:05,807 INFO L272 AbstractInterpreter]: Visited 827 different actions 2473 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 44 variables. [2018-08-08 09:41:05,814 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:41:06,984 INFO L232 lantSequenceWeakener]: Weakened 858 states. On average, predicates are now at 78.68% of their original sizes. [2018-08-08 09:41:06,984 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:41:07,316 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:41:07,317 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:41:07,317 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 09:41:07,317 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:41:07,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 09:41:07,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 09:41:07,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-08-08 09:41:07,319 INFO L87 Difference]: Start difference. First operand 3416 states and 4272 transitions. Second operand 15 states. [2018-08-08 09:41:34,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:41:34,208 INFO L93 Difference]: Finished difference Result 6915 states and 9495 transitions. [2018-08-08 09:41:34,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-08-08 09:41:34,208 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 861 [2018-08-08 09:41:34,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:41:34,229 INFO L225 Difference]: With dead ends: 6915 [2018-08-08 09:41:34,230 INFO L226 Difference]: Without dead ends: 4340 [2018-08-08 09:41:34,236 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 876 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2018-08-08 09:41:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4340 states. [2018-08-08 09:41:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4340 to 4323. [2018-08-08 09:41:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4323 states. [2018-08-08 09:41:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 5218 transitions. [2018-08-08 09:41:34,369 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 5218 transitions. Word has length 861 [2018-08-08 09:41:34,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:41:34,371 INFO L480 AbstractCegarLoop]: Abstraction has 4323 states and 5218 transitions. [2018-08-08 09:41:34,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 09:41:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 5218 transitions. [2018-08-08 09:41:34,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2018-08-08 09:41:34,392 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:41:34,393 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 09:41:34,395 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:41:34,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1168672762, now seen corresponding path program 1 times [2018-08-08 09:41:34,395 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:41:34,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 970 with the following transitions: [2018-08-08 09:41:34,397 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [473], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [885], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], 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[1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3539], [3540] [2018-08-08 09:41:34,406 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:41:34,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:41:37,796 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:41:37,796 INFO L272 AbstractInterpreter]: Visited 827 different actions 2473 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 44 variables. [2018-08-08 09:41:37,807 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:41:39,003 INFO L232 lantSequenceWeakener]: Weakened 966 states. On average, predicates are now at 78.67% of their original sizes. [2018-08-08 09:41:39,003 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:41:39,388 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:41:39,389 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:41:39,389 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 09:41:39,389 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:41:39,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 09:41:39,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 09:41:39,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-08-08 09:41:39,391 INFO L87 Difference]: Start difference. First operand 4323 states and 5218 transitions. Second operand 15 states. [2018-08-08 09:42:05,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:42:05,592 INFO L93 Difference]: Finished difference Result 9659 states and 12374 transitions. [2018-08-08 09:42:05,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-08-08 09:42:05,598 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 969 [2018-08-08 09:42:05,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:42:05,624 INFO L225 Difference]: With dead ends: 9659 [2018-08-08 09:42:05,624 INFO L226 Difference]: Without dead ends: 6177 [2018-08-08 09:42:05,632 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 984 GetRequests, 955 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2018-08-08 09:42:05,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6177 states. [2018-08-08 09:42:05,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6177 to 6161. [2018-08-08 09:42:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6161 states. [2018-08-08 09:42:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 7143 transitions. [2018-08-08 09:42:05,761 INFO L78 Accepts]: Start accepts. Automaton has 6161 states and 7143 transitions. Word has length 969 [2018-08-08 09:42:05,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:42:05,762 INFO L480 AbstractCegarLoop]: Abstraction has 6161 states and 7143 transitions. [2018-08-08 09:42:05,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 09:42:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6161 states and 7143 transitions. [2018-08-08 09:42:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2018-08-08 09:42:05,786 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:42:05,786 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 09:42:05,787 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:42:05,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1975765533, now seen corresponding path program 1 times [2018-08-08 09:42:05,787 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:42:05,788 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1044 with the following transitions: [2018-08-08 09:42:05,789 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [265], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [473], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [885], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3539], [3540] [2018-08-08 09:42:05,796 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:42:05,796 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:42:10,194 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:42:10,194 INFO L272 AbstractInterpreter]: Visited 828 different actions 3304 times. Merged at 8 different actions 25 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 44 variables. [2018-08-08 09:42:10,204 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:42:11,679 INFO L232 lantSequenceWeakener]: Weakened 1040 states. On average, predicates are now at 78.67% of their original sizes. [2018-08-08 09:42:11,679 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:42:11,982 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:42:11,982 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:42:11,983 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 09:42:11,983 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:42:11,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 09:42:11,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 09:42:11,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-08-08 09:42:11,985 INFO L87 Difference]: Start difference. First operand 6161 states and 7143 transitions. Second operand 15 states. [2018-08-08 09:42:30,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:42:30,358 INFO L93 Difference]: Finished difference Result 12515 states and 15386 transitions. [2018-08-08 09:42:30,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-08-08 09:42:30,366 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1043 [2018-08-08 09:42:30,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:42:30,395 INFO L225 Difference]: With dead ends: 12515 [2018-08-08 09:42:30,400 INFO L226 Difference]: Without dead ends: 7195 [2018-08-08 09:42:30,420 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 1058 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2018-08-08 09:42:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7195 states. [2018-08-08 09:42:30,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7195 to 7162. [2018-08-08 09:42:30,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7162 states. [2018-08-08 09:42:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7162 states to 7162 states and 8289 transitions. [2018-08-08 09:42:30,576 INFO L78 Accepts]: Start accepts. Automaton has 7162 states and 8289 transitions. Word has length 1043 [2018-08-08 09:42:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:42:30,579 INFO L480 AbstractCegarLoop]: Abstraction has 7162 states and 8289 transitions. [2018-08-08 09:42:30,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 09:42:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7162 states and 8289 transitions. [2018-08-08 09:42:30,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2018-08-08 09:42:30,606 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:42:30,608 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 09:42:30,608 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:42:30,608 INFO L82 PathProgramCache]: Analyzing trace with hash 806898680, now seen corresponding path program 1 times [2018-08-08 09:42:30,609 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:42:30,609 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1076 with the following transitions: [2018-08-08 09:42:30,610 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [265], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [473], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [885], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3539], [3540] [2018-08-08 09:42:30,618 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:42:30,618 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:42:36,278 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:42:36,279 INFO L272 AbstractInterpreter]: Visited 829 different actions 4139 times. Merged at 9 different actions 38 times. Never widened. Found 10 fixpoints after 2 different actions. Largest state had 44 variables. [2018-08-08 09:42:36,284 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:42:37,768 INFO L232 lantSequenceWeakener]: Weakened 1072 states. On average, predicates are now at 78.68% of their original sizes. [2018-08-08 09:42:37,768 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:42:38,069 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:42:38,069 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:42:38,069 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 09:42:38,069 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:42:38,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 09:42:38,071 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 09:42:38,071 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-08-08 09:42:38,071 INFO L87 Difference]: Start difference. First operand 7162 states and 8289 transitions. Second operand 15 states. [2018-08-08 09:43:03,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:43:03,438 INFO L93 Difference]: Finished difference Result 14724 states and 17904 transitions. [2018-08-08 09:43:03,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-08-08 09:43:03,439 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1075 [2018-08-08 09:43:03,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:43:03,480 INFO L225 Difference]: With dead ends: 14724 [2018-08-08 09:43:03,480 INFO L226 Difference]: Without dead ends: 8403 [2018-08-08 09:43:03,493 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 1090 GetRequests, 1061 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2018-08-08 09:43:03,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8403 states. [2018-08-08 09:43:03,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8403 to 8336. [2018-08-08 09:43:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8336 states. [2018-08-08 09:43:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 9797 transitions. [2018-08-08 09:43:03,666 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 9797 transitions. Word has length 1075 [2018-08-08 09:43:03,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:43:03,668 INFO L480 AbstractCegarLoop]: Abstraction has 8336 states and 9797 transitions. [2018-08-08 09:43:03,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 09:43:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 9797 transitions. [2018-08-08 09:43:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1113 [2018-08-08 09:43:03,703 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:43:03,704 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 09:43:03,704 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:43:03,705 INFO L82 PathProgramCache]: Analyzing trace with hash 771610542, now seen corresponding path program 1 times [2018-08-08 09:43:03,705 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:43:03,705 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1113 with the following transitions: [2018-08-08 09:43:03,707 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [884], [885], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [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], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2388], [2396], [2404], [2412], [2420], [2428], [2436], [2444], [2452], [2460], [2468], [2476], [2484], [2492], [2500], [2508], [2516], [2524], [2532], [2540], [2548], [2556], [2564], [2568], [2570], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2789], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3529], [3530], [3531], [3532], [3534], [3535], [3536], [3538], [3539], [3540] [2018-08-08 09:43:03,716 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:43:03,716 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:43:07,055 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:43:07,055 INFO L272 AbstractInterpreter]: Visited 830 different actions 2479 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 44 variables. [2018-08-08 09:43:07,062 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:43:08,616 INFO L232 lantSequenceWeakener]: Weakened 1109 states. On average, predicates are now at 78.66% of their original sizes. [2018-08-08 09:43:08,617 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:43:09,027 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:43:09,028 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:43:09,028 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-08-08 09:43:09,028 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:43:09,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-08-08 09:43:09,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-08-08 09:43:09,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-08-08 09:43:09,029 INFO L87 Difference]: Start difference. First operand 8336 states and 9797 transitions. Second operand 17 states. Received shutdown request... [2018-08-08 09:43:33,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-08-08 09:43:33,861 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 09:43:33,867 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 09:43:33,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 09:43:33 BoogieIcfgContainer [2018-08-08 09:43:33,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 09:43:33,868 INFO L168 Benchmark]: Toolchain (without parser) took 243283.46 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 594.7 MB. Max. memory is 7.1 GB. [2018-08-08 09:43:33,870 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 09:43:33,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2297.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-08-08 09:43:33,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-08 09:43:33,871 INFO L168 Benchmark]: Boogie Preprocessor took 632.79 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 852.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2018-08-08 09:43:33,873 INFO L168 Benchmark]: RCFGBuilder took 11316.70 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 155.2 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -39.4 MB). Peak memory consumption was 705.8 MB. Max. memory is 7.1 GB. [2018-08-08 09:43:33,874 INFO L168 Benchmark]: TraceAbstraction took 228891.37 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 492.3 MB. Max. memory is 7.1 GB. [2018-08-08 09:43:33,879 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2297.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 139.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 632.79 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 852.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11316.70 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 155.2 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -39.4 MB). Peak memory consumption was 705.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228891.37 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 492.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4787]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4787). Cancelled while BasicCegarLoop was constructing difference of abstraction (8336states) and FLOYD_HOARE automaton (currently 34 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (14424 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 228.8s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 186.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6775 SDtfs, 23224 SDslu, 6926 SDs, 0 SdLazy, 146920 SolverSat, 8936 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 159.0s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 7687 GetRequests, 7465 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8336occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 26.8s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9994486613915076 AbsIntWeakeningRatio, 0.04413319238900634 AbsIntAvgWeakeningVarsNumRemoved, 3.6988636363636362 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 147 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_09-43-33-897.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_09-43-33-897.csv Completed graceful shutdown