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-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:58:43,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:58:43,554 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:58:43,567 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:58:43,567 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:58:43,568 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:58:43,569 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:58:43,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:58:43,573 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:58:43,574 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:58:43,574 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:58:43,575 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:58:43,576 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:58:43,577 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:58:43,578 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:58:43,579 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:58:43,579 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:58:43,581 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:58:43,583 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:58:43,585 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:58:43,586 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:58:43,587 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:58:43,590 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:58:43,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:58:43,590 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:58:43,591 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:58:43,592 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:58:43,593 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:58:43,594 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:58:43,595 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:58:43,595 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:58:43,596 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:58:43,596 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:58:43,597 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:58:43,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:58:43,598 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:58:43,599 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 11:58:43,630 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:58:43,630 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:58:43,631 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:58:43,631 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:58:43,632 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:58:43,632 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:58:43,632 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:58:43,632 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:58:43,632 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:58:43,633 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:58:43,633 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:58:43,633 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:58:43,634 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:58:43,634 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:58:43,634 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:58:43,634 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:58:43,634 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:58:43,635 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:58:43,635 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:58:43,635 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:58:43,635 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:58:43,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:58:43,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:58:43,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:58:43,636 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:58:43,636 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:58:43,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:58:43,637 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:58:43,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:58:43,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:58:43,637 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:58:43,637 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:58:43,638 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:58:43,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:58:43,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:58:43,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:58:43,728 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:58:43,729 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:58:43,729 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-10 11:58:44,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/061f7309d/c977e670fa68454d9b5476fe23600a7f/FLAG0de034145 [2018-09-10 11:58:44,737 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:58:44,738 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-10 11:58:44,810 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/061f7309d/c977e670fa68454d9b5476fe23600a7f/FLAG0de034145 [2018-09-10 11:58:44,835 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/061f7309d/c977e670fa68454d9b5476fe23600a7f [2018-09-10 11:58:44,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:58:44,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:58:44,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:58:44,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:58:44,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:58:44,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:58:44" (1/1) ... [2018-09-10 11:58:44,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c5c827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:44, skipping insertion in model container [2018-09-10 11:58:44,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:58:44" (1/1) ... [2018-09-10 11:58:45,312 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:58:46,442 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:58:46,462 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:58:47,240 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:58:47,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47 WrapperNode [2018-09-10 11:58:47,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:58:47,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:58:47,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:58:47,689 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:58:47,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:47,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:47,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:58:47,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:58:47,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:58:47,987 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:58:48,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:48,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:49,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:49,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:49,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:49,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:49,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (1/1) ... [2018-09-10 11:58:49,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:58:49,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:58:49,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:58:49,482 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:58:49,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (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 [2018-09-10 11:58:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:58:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:58:49,563 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 [2018-09-10 11:58:49,564 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 [2018-09-10 11:58:49,564 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 [2018-09-10 11:58:49,564 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 [2018-09-10 11:58:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:58:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:58:49,564 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 [2018-09-10 11:58:49,565 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 [2018-09-10 11:58:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:58:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:58:49,565 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 [2018-09-10 11:58:49,565 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 [2018-09-10 11:59:03,021 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:59:03,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:59:03 BoogieIcfgContainer [2018-09-10 11:59:03,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:59:03,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:59:03,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:59:03,026 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:59:03,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:58:44" (1/3) ... [2018-09-10 11:59:03,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f7c3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:59:03, skipping insertion in model container [2018-09-10 11:59:03,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:58:47" (2/3) ... [2018-09-10 11:59:03,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f7c3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:59:03, skipping insertion in model container [2018-09-10 11:59:03,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:59:03" (3/3) ... [2018-09-10 11:59:03,030 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label52_true-unreach-call.c [2018-09-10 11:59:03,040 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:59:03,050 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:59:03,113 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:59:03,114 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:59:03,114 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:59:03,114 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:59:03,114 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:59:03,114 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:59:03,115 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:59:03,115 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:59:03,115 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:59:03,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-10 11:59:03,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-10 11:59:03,170 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:59:03,171 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] [2018-09-10 11:59:03,172 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:59:03,178 INFO L82 PathProgramCache]: Analyzing trace with hash 188640049, now seen corresponding path program 1 times [2018-09-10 11:59:03,181 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:59:03,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:03,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:59:03,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:03,240 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:59:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:59:03,787 WARN L175 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:59:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:59:03,932 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:59:03,932 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:59:03,932 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:59:03,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:59:03,957 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:59:03,958 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:59:03,961 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-10 11:59:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:59:13,453 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-09-10 11:59:13,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:59:13,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-09-10 11:59:13,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:59:13,491 INFO L225 Difference]: With dead ends: 3097 [2018-09-10 11:59:13,491 INFO L226 Difference]: Without dead ends: 1975 [2018-09-10 11:59:13,505 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:59:13,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-09-10 11:59:13,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-09-10 11:59:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-09-10 11:59:13,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-09-10 11:59:13,683 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 71 [2018-09-10 11:59:13,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:59:13,684 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-09-10 11:59:13,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:59:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-09-10 11:59:13,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-10 11:59:13,701 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:59:13,704 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:59:13,705 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:59:13,705 INFO L82 PathProgramCache]: Analyzing trace with hash -157585184, now seen corresponding path program 1 times [2018-09-10 11:59:13,706 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:59:13,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:13,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:59:13,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:13,708 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:59:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:59:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:59:14,309 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:59:14,310 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:59:14,310 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:59:14,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:59:14,313 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:59:14,313 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:59:14,314 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-09-10 11:59:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:59:32,692 INFO L93 Difference]: Finished difference Result 5737 states and 9691 transitions. [2018-09-10 11:59:32,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:59:32,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-09-10 11:59:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:59:32,726 INFO L225 Difference]: With dead ends: 5737 [2018-09-10 11:59:32,727 INFO L226 Difference]: Without dead ends: 3769 [2018-09-10 11:59:32,734 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:59:32,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2018-09-10 11:59:32,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3685. [2018-09-10 11:59:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3685 states. [2018-09-10 11:59:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5659 transitions. [2018-09-10 11:59:32,862 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5659 transitions. Word has length 147 [2018-09-10 11:59:32,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:59:32,863 INFO L480 AbstractCegarLoop]: Abstraction has 3685 states and 5659 transitions. [2018-09-10 11:59:32,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:59:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5659 transitions. [2018-09-10 11:59:32,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-10 11:59:32,870 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:59:32,870 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:59:32,871 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:59:32,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1694535172, now seen corresponding path program 1 times [2018-09-10 11:59:32,871 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:59:32,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:32,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:59:32,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:32,873 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:59:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:59:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:59:33,228 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:59:33,228 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:59:33,228 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:59:33,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:59:33,229 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:59:33,229 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:59:33,230 INFO L87 Difference]: Start difference. First operand 3685 states and 5659 transitions. Second operand 5 states. [2018-09-10 11:59:48,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:59:48,952 INFO L93 Difference]: Finished difference Result 12383 states and 19152 transitions. [2018-09-10 11:59:48,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:59:48,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2018-09-10 11:59:48,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:59:48,996 INFO L225 Difference]: With dead ends: 12383 [2018-09-10 11:59:48,996 INFO L226 Difference]: Without dead ends: 8704 [2018-09-10 11:59:49,014 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:59:49,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2018-09-10 11:59:49,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 8667. [2018-09-10 11:59:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8667 states. [2018-09-10 11:59:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8667 states to 8667 states and 12395 transitions. [2018-09-10 11:59:49,219 INFO L78 Accepts]: Start accepts. Automaton has 8667 states and 12395 transitions. Word has length 161 [2018-09-10 11:59:49,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:59:49,219 INFO L480 AbstractCegarLoop]: Abstraction has 8667 states and 12395 transitions. [2018-09-10 11:59:49,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:59:49,220 INFO L276 IsEmpty]: Start isEmpty. Operand 8667 states and 12395 transitions. [2018-09-10 11:59:49,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-09-10 11:59:49,224 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:59:49,224 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:59:49,225 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:59:49,225 INFO L82 PathProgramCache]: Analyzing trace with hash -374541796, now seen corresponding path program 1 times [2018-09-10 11:59:49,225 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:59:49,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:49,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:59:49,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:59:49,226 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:59:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:59:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:59:49,535 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:59:49,535 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:59:49,536 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:59:49,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:59:49,536 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:59:49,537 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:59:49,537 INFO L87 Difference]: Start difference. First operand 8667 states and 12395 transitions. Second operand 5 states. [2018-09-10 12:00:18,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:00:18,928 INFO L93 Difference]: Finished difference Result 31345 states and 47345 transitions. [2018-09-10 12:00:18,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:00:18,930 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2018-09-10 12:00:18,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:00:19,049 INFO L225 Difference]: With dead ends: 31345 [2018-09-10 12:00:19,049 INFO L226 Difference]: Without dead ends: 22684 [2018-09-10 12:00:19,094 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:00:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22684 states. [2018-09-10 12:00:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22684 to 22400. [2018-09-10 12:00:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22400 states. [2018-09-10 12:00:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22400 states to 22400 states and 31704 transitions. [2018-09-10 12:00:19,816 INFO L78 Accepts]: Start accepts. Automaton has 22400 states and 31704 transitions. Word has length 177 [2018-09-10 12:00:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:00:19,817 INFO L480 AbstractCegarLoop]: Abstraction has 22400 states and 31704 transitions. [2018-09-10 12:00:19,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:00:19,817 INFO L276 IsEmpty]: Start isEmpty. Operand 22400 states and 31704 transitions. [2018-09-10 12:00:19,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-09-10 12:00:19,825 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:00:19,825 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:00:19,826 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:00:19,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1291474400, now seen corresponding path program 1 times [2018-09-10 12:00:19,826 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:00:19,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:00:19,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:00:19,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:00:19,828 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:00:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:00:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:00:20,192 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:00:20,192 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 12:00:20,192 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:00:20,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:00:20,193 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:00:20,194 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 12:00:20,194 INFO L87 Difference]: Start difference. First operand 22400 states and 31704 transitions. Second operand 5 states. [2018-09-10 12:00:49,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:00:49,053 INFO L93 Difference]: Finished difference Result 62890 states and 92431 transitions. [2018-09-10 12:00:49,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:00:49,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2018-09-10 12:00:49,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:00:49,215 INFO L225 Difference]: With dead ends: 62890 [2018-09-10 12:00:49,216 INFO L226 Difference]: Without dead ends: 40496 [2018-09-10 12:00:49,271 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:00:49,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40496 states. [2018-09-10 12:00:50,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40496 to 40339. [2018-09-10 12:00:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40339 states. [2018-09-10 12:00:50,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40339 states to 40339 states and 58362 transitions. [2018-09-10 12:00:50,130 INFO L78 Accepts]: Start accepts. Automaton has 40339 states and 58362 transitions. Word has length 179 [2018-09-10 12:00:50,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:00:50,130 INFO L480 AbstractCegarLoop]: Abstraction has 40339 states and 58362 transitions. [2018-09-10 12:00:50,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:00:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 40339 states and 58362 transitions. [2018-09-10 12:00:50,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-09-10 12:00:50,137 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:00:50,138 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 12:00:50,138 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:00:50,138 INFO L82 PathProgramCache]: Analyzing trace with hash 251272624, now seen corresponding path program 1 times [2018-09-10 12:00:50,138 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:00:50,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:00:50,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:00:50,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:00:50,140 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:00:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:00:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:00:50,407 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:00:50,407 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:00:50,408 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:00:50,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:00:50,408 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:00:50,408 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:00:50,409 INFO L87 Difference]: Start difference. First operand 40339 states and 58362 transitions. Second operand 4 states. [2018-09-10 12:01:03,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:01:03,528 INFO L93 Difference]: Finished difference Result 146986 states and 233833 transitions. [2018-09-10 12:01:03,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:01:03,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2018-09-10 12:01:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:01:03,980 INFO L225 Difference]: With dead ends: 146986 [2018-09-10 12:01:03,980 INFO L226 Difference]: Without dead ends: 106653 [2018-09-10 12:01:04,152 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:01:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106653 states. [2018-09-10 12:01:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106653 to 106522. [2018-09-10 12:01:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106522 states. [2018-09-10 12:01:06,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106522 states to 106522 states and 154411 transitions. [2018-09-10 12:01:06,611 INFO L78 Accepts]: Start accepts. Automaton has 106522 states and 154411 transitions. Word has length 187 [2018-09-10 12:01:06,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:01:06,612 INFO L480 AbstractCegarLoop]: Abstraction has 106522 states and 154411 transitions. [2018-09-10 12:01:06,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:01:06,612 INFO L276 IsEmpty]: Start isEmpty. Operand 106522 states and 154411 transitions. [2018-09-10 12:01:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-10 12:01:06,631 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:01:06,631 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:01:06,632 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:01:06,632 INFO L82 PathProgramCache]: Analyzing trace with hash 954668959, now seen corresponding path program 1 times [2018-09-10 12:01:06,632 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:01:06,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:01:06,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:01:06,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:01:06,633 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:01:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:01:07,340 WARN L175 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-10 12:01:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 205 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:01:07,525 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:01:07,525 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:01:07,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:01:07,541 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:01:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:01:07,684 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:01:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-10 12:01:07,841 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:01:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-10 12:01:08,440 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:01:08,440 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2018-09-10 12:01:08,440 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:01:08,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:01:08,442 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:01:08,442 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:01:08,442 INFO L87 Difference]: Start difference. First operand 106522 states and 154411 transitions. Second operand 3 states. [2018-09-10 12:01:19,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:01:19,210 INFO L93 Difference]: Finished difference Result 259343 states and 403079 transitions. [2018-09-10 12:01:19,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:01:19,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2018-09-10 12:01:19,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:01:20,065 INFO L225 Difference]: With dead ends: 259343 [2018-09-10 12:01:20,066 INFO L226 Difference]: Without dead ends: 153631 [2018-09-10 12:01:20,398 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 563 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:01:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153631 states. [2018-09-10 12:01:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153631 to 153618. [2018-09-10 12:01:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153618 states. [2018-09-10 12:01:25,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153618 states to 153618 states and 229654 transitions. [2018-09-10 12:01:25,259 INFO L78 Accepts]: Start accepts. Automaton has 153618 states and 229654 transitions. Word has length 282 [2018-09-10 12:01:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:01:25,260 INFO L480 AbstractCegarLoop]: Abstraction has 153618 states and 229654 transitions. [2018-09-10 12:01:25,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:01:25,260 INFO L276 IsEmpty]: Start isEmpty. Operand 153618 states and 229654 transitions. [2018-09-10 12:01:25,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-09-10 12:01:25,296 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:01:25,296 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 12:01:25,297 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:01:25,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2136994534, now seen corresponding path program 1 times [2018-09-10 12:01:25,297 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:01:25,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:01:25,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:01:25,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:01:25,299 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:01:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:01:25,634 WARN L175 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:01:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 194 proven. 23 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-09-10 12:01:26,173 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:01:26,173 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:01:26,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:01:26,187 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:01:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:01:26,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:01:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 352 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-10 12:01:26,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:01:27,084 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 352 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-10 12:01:27,105 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:01:27,106 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:01:27,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:01:27,121 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:01:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:01:27,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:01:27,628 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 347 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 12:01:27,628 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:01:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 349 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 12:01:28,134 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:01:28,134 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-10 12:01:28,134 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:01:28,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:01:28,136 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:01:28,136 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-10 12:01:28,136 INFO L87 Difference]: Start difference. First operand 153618 states and 229654 transitions. Second operand 9 states. [2018-09-10 12:01:31,508 WARN L175 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-10 12:01:54,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:01:54,469 INFO L93 Difference]: Finished difference Result 373031 states and 620297 transitions. [2018-09-10 12:01:54,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-09-10 12:01:54,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 326 [2018-09-10 12:01:54,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:01:57,263 INFO L225 Difference]: With dead ends: 373031 [2018-09-10 12:01:57,263 INFO L226 Difference]: Without dead ends: 220223 [2018-09-10 12:01:57,516 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1371 GetRequests, 1324 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=402, Invalid=1578, Unknown=0, NotChecked=0, Total=1980 [2018-09-10 12:01:57,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220223 states. [2018-09-10 12:02:01,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220223 to 215426. [2018-09-10 12:02:01,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215426 states. [2018-09-10 12:02:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215426 states to 215426 states and 297320 transitions. [2018-09-10 12:02:02,428 INFO L78 Accepts]: Start accepts. Automaton has 215426 states and 297320 transitions. Word has length 326 [2018-09-10 12:02:02,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:02:02,429 INFO L480 AbstractCegarLoop]: Abstraction has 215426 states and 297320 transitions. [2018-09-10 12:02:02,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:02:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 215426 states and 297320 transitions. [2018-09-10 12:02:02,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-09-10 12:02:02,451 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:02:02,452 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:02:02,452 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:02:02,452 INFO L82 PathProgramCache]: Analyzing trace with hash -974377271, now seen corresponding path program 1 times [2018-09-10 12:02:02,453 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:02:02,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:02:02,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:02:02,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:02:02,454 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:02:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:02:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 129 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-10 12:02:04,310 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:02:04,310 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:02:04,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:02:04,319 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:02:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:02:04,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:02:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:02:04,677 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:02:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:02:04,880 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:02:04,880 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:02:04,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:02:04,900 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:02:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:02:05,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:02:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-10 12:02:05,318 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:02:06,296 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-10 12:02:06,298 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-10 12:02:06,299 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-09-10 12:02:06,299 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:02:06,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:02:06,300 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:02:06,300 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:02:06,300 INFO L87 Difference]: Start difference. First operand 215426 states and 297320 transitions. Second operand 5 states. [2018-09-10 12:02:20,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:02:20,353 INFO L93 Difference]: Finished difference Result 404924 states and 566226 transitions. [2018-09-10 12:02:20,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 12:02:20,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 359 [2018-09-10 12:02:20,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:02:21,030 INFO L225 Difference]: With dead ends: 404924 [2018-09-10 12:02:21,030 INFO L226 Difference]: Without dead ends: 214505 [2018-09-10 12:02:21,389 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 1426 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:02:21,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214505 states. [2018-09-10 12:02:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214505 to 212534. [2018-09-10 12:02:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212534 states. [2018-09-10 12:02:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212534 states to 212534 states and 272968 transitions. [2018-09-10 12:02:25,205 INFO L78 Accepts]: Start accepts. Automaton has 212534 states and 272968 transitions. Word has length 359 [2018-09-10 12:02:25,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:02:25,206 INFO L480 AbstractCegarLoop]: Abstraction has 212534 states and 272968 transitions. [2018-09-10 12:02:25,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:02:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 212534 states and 272968 transitions. [2018-09-10 12:02:25,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-09-10 12:02:25,232 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:02:25,232 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:02:25,233 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:02:25,233 INFO L82 PathProgramCache]: Analyzing trace with hash -260170268, now seen corresponding path program 1 times [2018-09-10 12:02:25,233 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:02:25,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:02:25,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:02:25,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:02:25,234 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:02:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:02:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-10 12:02:25,902 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:02:25,902 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:02:25,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:02:25,916 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:02:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:02:26,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:02:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-10 12:02:27,204 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:02:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-10 12:02:27,395 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:02:27,395 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 Received shutdown request... [2018-09-10 12:02:27,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:02:27,415 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:02:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:02:27,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:02:27,775 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-10 12:02:27,976 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:02:27,976 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:02:27,982 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:02:27,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:02:27 BoogieIcfgContainer [2018-09-10 12:02:27,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:02:27,983 INFO L168 Benchmark]: Toolchain (without parser) took 223132.35 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-10 12:02:27,984 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-10 12:02:27,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2830.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:02:27,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 298.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-10 12:02:27,988 INFO L168 Benchmark]: Boogie Preprocessor took 1494.29 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 981.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:02:27,992 INFO L168 Benchmark]: RCFGBuilder took 13540.63 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 237.5 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -44.2 MB). Peak memory consumption was 796.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:02:27,992 INFO L168 Benchmark]: TraceAbstraction took 204959.80 ms. Allocated memory was 2.8 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -530.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-10 12:02:27,999 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 2830.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 298.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1494.29 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 981.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13540.63 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 237.5 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -44.2 MB). Peak memory consumption was 796.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204959.80 ms. Allocated memory was 2.8 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -530.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 204]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 204). Cancelled while BasicCegarLoop was analyzing trace of length 385 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 204.8s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 172.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5659 SDtfs, 31926 SDslu, 4949 SDs, 0 SdLazy, 58255 SolverSat, 14084 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 133.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3436 GetRequests, 3330 SyntacticMatches, 15 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215426occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 18.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 7475 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 3541 NumberOfCodeBlocks, 3541 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5174 ConstructedInterpolants, 0 QuantifiedInterpolants, 5042492 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2844 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 4330/4409 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-02-28-014.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-02-28-014.csv Completed graceful shutdown