java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 15:06:47,618 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 15:06:47,620 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 15:06:47,631 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 15:06:47,632 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 15:06:47,633 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 15:06:47,634 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 15:06:47,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 15:06:47,637 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 15:06:47,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 15:06:47,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 15:06:47,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 15:06:47,644 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 15:06:47,645 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 15:06:47,646 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 15:06:47,649 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 15:06:47,650 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 15:06:47,658 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 15:06:47,662 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 15:06:47,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 15:06:47,669 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 15:06:47,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 15:06:47,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 15:06:47,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 15:06:47,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 15:06:47,677 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 15:06:47,678 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 15:06:47,679 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 15:06:47,680 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 15:06:47,680 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 15:06:47,681 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 15:06:47,681 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 15:06:47,681 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 15:06:47,681 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 15:06:47,682 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 15:06:47,683 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 15:06:47,683 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 [2018-07-24 15:06:47,698 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 15:06:47,701 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 15:06:47,702 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 15:06:47,702 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 15:06:47,702 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 15:06:47,703 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 15:06:47,703 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 15:06:47,703 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 15:06:47,703 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 15:06:47,703 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 15:06:47,703 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 15:06:47,704 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 15:06:47,705 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 15:06:47,705 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 15:06:47,705 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 15:06:47,705 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 15:06:47,706 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 15:06:47,706 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 15:06:47,706 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 15:06:47,706 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 15:06:47,706 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 15:06:47,707 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 15:06:47,707 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 15:06:47,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 15:06:47,708 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 15:06:47,709 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 15:06:47,709 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 15:06:47,709 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 15:06:47,709 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 15:06:47,709 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 15:06:47,710 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 15:06:47,710 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 15:06:47,710 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 15:06:47,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 15:06:47,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 15:06:47,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 15:06:47,813 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 15:06:47,813 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 15:06:47,814 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c [2018-07-24 15:06:48,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69044077f/e5fdb9bff6934ff286652a5e9a998fa1/FLAG79d206487 [2018-07-24 15:06:48,821 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 15:06:48,822 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c [2018-07-24 15:06:48,880 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69044077f/e5fdb9bff6934ff286652a5e9a998fa1/FLAG79d206487 [2018-07-24 15:06:48,901 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69044077f/e5fdb9bff6934ff286652a5e9a998fa1 [2018-07-24 15:06:48,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 15:06:48,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 15:06:48,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 15:06:48,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 15:06:48,927 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 15:06:48,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:06:48" (1/1) ... [2018-07-24 15:06:48,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47dbc58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:48, skipping insertion in model container [2018-07-24 15:06:48,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:06:48" (1/1) ... [2018-07-24 15:06:49,422 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 15:06:51,027 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 15:06:51,046 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 15:06:52,432 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 15:06:52,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52 WrapperNode [2018-07-24 15:06:52,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 15:06:52,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 15:06:52,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 15:06:52,992 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 15:06:53,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:53,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:53,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 15:06:53,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 15:06:53,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 15:06:53,314 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 15:06:54,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:54,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:54,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:54,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:54,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:54,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:54,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... [2018-07-24 15:06:55,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 15:06:55,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 15:06:55,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 15:06:55,057 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 15:06:55,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 15:06:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 15:06:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 15:06:55,126 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_output5 [2018-07-24 15:06:55,126 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_output5 [2018-07-24 15:06:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 15:06:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 15:06:55,127 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_output6 [2018-07-24 15:06:55,127 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_output6 [2018-07-24 15:06:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 15:06:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 15:06:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 15:06:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 15:06:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 15:06:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 15:06:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 15:06:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 15:06:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 15:06:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 15:07:14,968 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 15:07:14,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:07:14 BoogieIcfgContainer [2018-07-24 15:07:14,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 15:07:14,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 15:07:14,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 15:07:14,974 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 15:07:14,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 03:06:48" (1/3) ... [2018-07-24 15:07:14,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618c221a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:07:14, skipping insertion in model container [2018-07-24 15:07:14,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:06:52" (2/3) ... [2018-07-24 15:07:14,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618c221a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:07:14, skipping insertion in model container [2018-07-24 15:07:14,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:07:14" (3/3) ... [2018-07-24 15:07:14,978 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label01_true-unreach-call.c [2018-07-24 15:07:14,987 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 15:07:14,997 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 15:07:15,075 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 15:07:15,076 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 15:07:15,076 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 15:07:15,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 15:07:15,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 15:07:15,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 15:07:15,077 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 15:07:15,077 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 15:07:15,079 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 15:07:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-24 15:07:15,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-24 15:07:15,147 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:07:15,148 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 15:07:15,149 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:07:15,154 INFO L82 PathProgramCache]: Analyzing trace with hash -314971162, now seen corresponding path program 1 times [2018-07-24 15:07:15,157 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:07:15,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:07:15,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:07:15,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:07:15,209 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:07:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:07:15,708 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 15:07:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:07:15,831 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:07:15,832 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 15:07:15,832 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:07:15,838 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 15:07:15,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 15:07:15,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 15:07:15,857 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-24 15:07:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:07:33,512 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-07-24 15:07:33,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 15:07:33,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2018-07-24 15:07:33,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:07:33,574 INFO L225 Difference]: With dead ends: 4995 [2018-07-24 15:07:33,575 INFO L226 Difference]: Without dead ends: 3215 [2018-07-24 15:07:33,586 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 15:07:33,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-07-24 15:07:33,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-07-24 15:07:33,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-07-24 15:07:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-07-24 15:07:33,801 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 70 [2018-07-24 15:07:33,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:07:33,802 INFO L471 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-07-24 15:07:33,802 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 15:07:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-07-24 15:07:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-24 15:07:33,821 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:07:33,822 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:07:33,822 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:07:33,823 INFO L82 PathProgramCache]: Analyzing trace with hash -40687127, now seen corresponding path program 1 times [2018-07-24 15:07:33,823 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:07:33,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:07:33,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:07:33,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:07:33,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:07:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:07:34,172 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:07:34,172 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:07:34,172 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:07:34,173 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:07:34,175 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:07:34,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:07:34,175 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:07:34,175 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 6 states. [2018-07-24 15:08:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:08:05,840 INFO L93 Difference]: Finished difference Result 9717 states and 17679 transitions. [2018-07-24 15:08:05,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 15:08:05,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-07-24 15:08:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:08:05,886 INFO L225 Difference]: With dead ends: 9717 [2018-07-24 15:08:05,887 INFO L226 Difference]: Without dead ends: 6510 [2018-07-24 15:08:05,899 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 15:08:05,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6510 states. [2018-07-24 15:08:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6510 to 6349. [2018-07-24 15:08:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6349 states. [2018-07-24 15:08:06,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6349 states to 6349 states and 9904 transitions. [2018-07-24 15:08:06,096 INFO L78 Accepts]: Start accepts. Automaton has 6349 states and 9904 transitions. Word has length 144 [2018-07-24 15:08:06,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:08:06,097 INFO L471 AbstractCegarLoop]: Abstraction has 6349 states and 9904 transitions. [2018-07-24 15:08:06,097 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:08:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 6349 states and 9904 transitions. [2018-07-24 15:08:06,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-24 15:08:06,104 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:08:06,105 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:08:06,105 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:08:06,105 INFO L82 PathProgramCache]: Analyzing trace with hash 317815395, now seen corresponding path program 1 times [2018-07-24 15:08:06,107 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:08:06,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:08:06,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:08:06,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:08:06,109 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:08:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:08:06,386 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 15:08:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:08:06,438 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:08:06,438 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:08:06,438 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:08:06,439 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:08:06,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:08:06,439 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:08:06,440 INFO L87 Difference]: Start difference. First operand 6349 states and 9904 transitions. Second operand 6 states. [2018-07-24 15:08:26,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:08:26,530 INFO L93 Difference]: Finished difference Result 15878 states and 24898 transitions. [2018-07-24 15:08:26,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 15:08:26,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-07-24 15:08:26,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:08:26,586 INFO L225 Difference]: With dead ends: 15878 [2018-07-24 15:08:26,586 INFO L226 Difference]: Without dead ends: 9535 [2018-07-24 15:08:26,605 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 15:08:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9535 states. [2018-07-24 15:08:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9535 to 9405. [2018-07-24 15:08:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9405 states. [2018-07-24 15:08:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9405 states to 9405 states and 13925 transitions. [2018-07-24 15:08:26,847 INFO L78 Accepts]: Start accepts. Automaton has 9405 states and 13925 transitions. Word has length 149 [2018-07-24 15:08:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:08:26,847 INFO L471 AbstractCegarLoop]: Abstraction has 9405 states and 13925 transitions. [2018-07-24 15:08:26,847 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:08:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 9405 states and 13925 transitions. [2018-07-24 15:08:26,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-24 15:08:26,853 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:08:26,853 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:08:26,855 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:08:26,855 INFO L82 PathProgramCache]: Analyzing trace with hash 431730905, now seen corresponding path program 1 times [2018-07-24 15:08:26,855 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:08:26,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:08:26,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:08:26,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:08:26,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:08:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:08:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:08:27,076 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:08:27,076 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 15:08:27,076 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:08:27,077 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 15:08:27,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 15:08:27,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 15:08:27,077 INFO L87 Difference]: Start difference. First operand 9405 states and 13925 transitions. Second operand 5 states. [2018-07-24 15:08:48,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:08:48,639 INFO L93 Difference]: Finished difference Result 28364 states and 42588 transitions. [2018-07-24 15:08:48,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 15:08:48,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2018-07-24 15:08:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:08:48,727 INFO L225 Difference]: With dead ends: 28364 [2018-07-24 15:08:48,727 INFO L226 Difference]: Without dead ends: 18965 [2018-07-24 15:08:48,755 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 15:08:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18965 states. [2018-07-24 15:08:49,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18965 to 18635. [2018-07-24 15:08:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18635 states. [2018-07-24 15:08:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18635 states to 18635 states and 26468 transitions. [2018-07-24 15:08:49,157 INFO L78 Accepts]: Start accepts. Automaton has 18635 states and 26468 transitions. Word has length 152 [2018-07-24 15:08:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:08:49,158 INFO L471 AbstractCegarLoop]: Abstraction has 18635 states and 26468 transitions. [2018-07-24 15:08:49,158 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 15:08:49,158 INFO L276 IsEmpty]: Start isEmpty. Operand 18635 states and 26468 transitions. [2018-07-24 15:08:49,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-24 15:08:49,162 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:08:49,162 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:08:49,162 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:08:49,162 INFO L82 PathProgramCache]: Analyzing trace with hash 737555449, now seen corresponding path program 1 times [2018-07-24 15:08:49,163 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:08:49,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:08:49,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:08:49,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:08:49,164 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:08:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:08:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:08:49,717 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:08:49,717 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:08:49,717 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:08:49,718 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:08:49,718 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:08:49,718 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:08:49,719 INFO L87 Difference]: Start difference. First operand 18635 states and 26468 transitions. Second operand 6 states. [2018-07-24 15:09:38,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:09:38,949 INFO L93 Difference]: Finished difference Result 72527 states and 112782 transitions. [2018-07-24 15:09:38,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 15:09:38,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2018-07-24 15:09:38,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:09:39,157 INFO L225 Difference]: With dead ends: 72527 [2018-07-24 15:09:39,157 INFO L226 Difference]: Without dead ends: 53898 [2018-07-24 15:09:39,232 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 15:09:39,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53898 states. [2018-07-24 15:09:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53898 to 53570. [2018-07-24 15:09:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53570 states. [2018-07-24 15:09:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53570 states to 53570 states and 73511 transitions. [2018-07-24 15:09:40,362 INFO L78 Accepts]: Start accepts. Automaton has 53570 states and 73511 transitions. Word has length 179 [2018-07-24 15:09:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:09:40,363 INFO L471 AbstractCegarLoop]: Abstraction has 53570 states and 73511 transitions. [2018-07-24 15:09:40,363 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:09:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 53570 states and 73511 transitions. [2018-07-24 15:09:40,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-07-24 15:09:40,367 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:09:40,368 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:09:40,368 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:09:40,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1608333347, now seen corresponding path program 1 times [2018-07-24 15:09:40,368 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:09:40,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:09:40,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:09:40,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:09:40,369 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:09:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:09:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:09:40,686 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:09:40,686 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 15:09:40,686 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:09:40,687 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 15:09:40,687 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 15:09:40,688 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 15:09:40,688 INFO L87 Difference]: Start difference. First operand 53570 states and 73511 transitions. Second operand 4 states. [2018-07-24 15:10:02,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:10:02,350 INFO L93 Difference]: Finished difference Result 199278 states and 303060 transitions. [2018-07-24 15:10:02,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 15:10:02,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2018-07-24 15:10:02,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:10:03,002 INFO L225 Difference]: With dead ends: 199278 [2018-07-24 15:10:03,003 INFO L226 Difference]: Without dead ends: 145714 [2018-07-24 15:10:03,204 INFO L573 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 [2018-07-24 15:10:03,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145714 states. [2018-07-24 15:10:06,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145714 to 145475. [2018-07-24 15:10:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145475 states. [2018-07-24 15:10:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145475 states to 145475 states and 207966 transitions. [2018-07-24 15:10:07,260 INFO L78 Accepts]: Start accepts. Automaton has 145475 states and 207966 transitions. Word has length 282 [2018-07-24 15:10:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:10:07,261 INFO L471 AbstractCegarLoop]: Abstraction has 145475 states and 207966 transitions. [2018-07-24 15:10:07,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 15:10:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 145475 states and 207966 transitions. [2018-07-24 15:10:07,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2018-07-24 15:10:07,311 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:10:07,312 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 15:10:07,312 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:10:07,312 INFO L82 PathProgramCache]: Analyzing trace with hash -779742101, now seen corresponding path program 1 times [2018-07-24 15:10:07,312 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:10:07,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:10:07,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:10:07,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:10:07,317 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:10:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:10:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:10:08,207 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:10:08,207 INFO L191 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 [2018-07-24 15:10:08,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:10:08,216 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:10:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:10:08,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:10:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:10:10,149 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:10:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:10:11,103 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:10:11,104 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 15:10:11,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:10:11,120 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:10:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:10:11,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:10:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:10:12,151 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:10:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:10:13,773 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:10:13,773 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 15:10:13,773 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:10:13,776 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 15:10:13,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 15:10:13,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 15:10:13,776 INFO L87 Difference]: Start difference. First operand 145475 states and 207966 transitions. Second operand 9 states. Received shutdown request... [2018-07-24 15:10:46,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 15:10:46,772 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 15:10:46,776 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 15:10:46,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:10:46 BoogieIcfgContainer [2018-07-24 15:10:46,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 15:10:46,778 INFO L168 Benchmark]: Toolchain (without parser) took 237861.99 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -673.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-07-24 15:10:46,779 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 15:10:46,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4072.85 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 176.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -108.3 MB). Peak memory consumption was 470.0 MB. Max. memory is 7.1 GB. [2018-07-24 15:10:46,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 321.59 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. [2018-07-24 15:10:46,781 INFO L168 Benchmark]: Boogie Preprocessor took 1742.71 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 873.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -881.6 MB). Peak memory consumption was 130.1 MB. Max. memory is 7.1 GB. [2018-07-24 15:10:46,782 INFO L168 Benchmark]: RCFGBuilder took 19912.68 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 234.4 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 283.6 MB). Peak memory consumption was 998.5 MB. Max. memory is 7.1 GB. [2018-07-24 15:10:46,783 INFO L168 Benchmark]: TraceAbstraction took 211806.89 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 814.2 MB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -27.3 MB). Peak memory consumption was 787.0 MB. Max. memory is 7.1 GB. [2018-07-24 15:10:46,788 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 4072.85 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 176.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -108.3 MB). Peak memory consumption was 470.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 321.59 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1742.71 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 873.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -881.6 MB). Peak memory consumption was 130.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 19912.68 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 234.4 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 283.6 MB). Peak memory consumption was 998.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211806.89 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 814.2 MB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -27.3 MB). Peak memory consumption was 787.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 205]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 205). Cancelled while BasicCegarLoop was constructing difference of abstraction (145475states) and interpolant automaton (currently 16 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (242578 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 211.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 196.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4694 SDtfs, 38970 SDslu, 5159 SDs, 0 SdLazy, 78164 SolverSat, 18361 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 169.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3301 GetRequests, 3244 SyntacticMatches, 7 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145475occurred in iteration=6, 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: 6.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 1190 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 3397 NumberOfCodeBlocks, 3397 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 5000 ConstructedInterpolants, 0 QuantifiedInterpolants, 5860640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2136 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 1485/1495 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/Problem19_label01_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_15-10-46-803.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label01_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_15-10-46-803.csv Completed graceful shutdown