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/Problem19_label33_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:47:01,712 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:47:01,714 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:47:01,736 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:47:01,736 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:47:01,737 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:47:01,738 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:47:01,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:47:01,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:47:01,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:47:01,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:47:01,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:47:01,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:47:01,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:47:01,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:47:01,748 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:47:01,749 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:47:01,751 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:47:01,753 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:47:01,754 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:47:01,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:47:01,760 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:47:01,763 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:47:01,763 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:47:01,763 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:47:01,764 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:47:01,765 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:47:01,766 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:47:01,767 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:47:01,768 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:47:01,768 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:47:01,769 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:47:01,769 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:47:01,770 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:47:01,771 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:47:01,771 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:47:01,772 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 12:47:01,799 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:47:01,799 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:47:01,800 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:47:01,801 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:47:01,801 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:47:01,801 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:47:01,801 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:47:01,801 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:47:01,802 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:47:01,802 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:47:01,802 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:47:01,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:47:01,804 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:47:01,804 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:47:01,804 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:47:01,804 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:47:01,806 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:47:01,806 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:47:01,806 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:47:01,807 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:47:01,807 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:47:01,807 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:47:01,807 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:47:01,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:47:01,808 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:47:01,808 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:47:01,808 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:47:01,808 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:47:01,809 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:47:01,809 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:47:01,809 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:47:01,809 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:47:01,810 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:47:01,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:47:01,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:47:01,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:47:01,906 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:47:01,906 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:47:01,907 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label33_true-unreach-call.c [2018-09-10 12:47:02,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70164095f/2cf760b3e2694954a6e8582d8fff8ceb/FLAG99742cd2c [2018-09-10 12:47:02,877 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:47:02,877 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label33_true-unreach-call.c [2018-09-10 12:47:02,930 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70164095f/2cf760b3e2694954a6e8582d8fff8ceb/FLAG99742cd2c [2018-09-10 12:47:02,951 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70164095f/2cf760b3e2694954a6e8582d8fff8ceb [2018-09-10 12:47:02,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:47:02,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:47:02,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:47:02,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:47:02,974 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:47:02,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:47:02" (1/1) ... [2018-09-10 12:47:02,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4554d60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:02, skipping insertion in model container [2018-09-10 12:47:02,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:47:02" (1/1) ... [2018-09-10 12:47:03,437 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:47:05,129 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:47:05,150 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:47:06,336 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:47:06,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06 WrapperNode [2018-09-10 12:47:06,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:47:06,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:47:06,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:47:06,965 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:47:06,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:07,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:07,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:47:07,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:47:07,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:47:07,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:47:08,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:08,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:08,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:08,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:08,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:08,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:09,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (1/1) ... [2018-09-10 12:47:09,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:47:09,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:47:09,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:47:09,227 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:47:09,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (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 12:47:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:47:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:47:09,302 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 [2018-09-10 12:47:09,302 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 [2018-09-10 12:47:09,303 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 12:47:09,303 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 12:47:09,303 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 [2018-09-10 12:47:09,303 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 [2018-09-10 12:47:09,303 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 12:47:09,304 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 12:47:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:47:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:47:09,304 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 12:47:09,304 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 12:47:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:47:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:47:09,306 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 12:47:09,306 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 12:47:29,699 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:47:29,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:47:29 BoogieIcfgContainer [2018-09-10 12:47:29,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:47:29,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:47:29,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:47:29,705 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:47:29,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:47:02" (1/3) ... [2018-09-10 12:47:29,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fb34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:47:29, skipping insertion in model container [2018-09-10 12:47:29,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:06" (2/3) ... [2018-09-10 12:47:29,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fb34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:47:29, skipping insertion in model container [2018-09-10 12:47:29,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:47:29" (3/3) ... [2018-09-10 12:47:29,708 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label33_true-unreach-call.c [2018-09-10 12:47:29,719 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:47:29,731 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:47:29,814 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:47:29,815 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:47:29,815 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:47:29,815 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:47:29,816 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:47:29,816 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:47:29,816 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:47:29,816 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:47:29,816 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:47:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-10 12:47:29,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-10 12:47:29,895 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:47:29,897 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] [2018-09-10 12:47:29,898 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 12:47:29,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1827419186, now seen corresponding path program 1 times [2018-09-10 12:47:29,906 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:47:29,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:29,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:47:29,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:29,961 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:47:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:47:30,439 WARN L175 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-10 12:47:30,471 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 12:47:30,473 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:47:30,474 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:47:30,474 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:47:30,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:47:30,516 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:47:30,520 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:47:30,523 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-09-10 12:47:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:47:57,964 INFO L93 Difference]: Finished difference Result 6510 states and 12381 transitions. [2018-09-10 12:47:57,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:47:57,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-09-10 12:47:57,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:47:58,029 INFO L225 Difference]: With dead ends: 6510 [2018-09-10 12:47:58,029 INFO L226 Difference]: Without dead ends: 4726 [2018-09-10 12:47:58,047 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:47:58,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2018-09-10 12:47:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4687. [2018-09-10 12:47:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4687 states. [2018-09-10 12:47:58,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 7413 transitions. [2018-09-10 12:47:58,321 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 7413 transitions. Word has length 48 [2018-09-10 12:47:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:47:58,322 INFO L480 AbstractCegarLoop]: Abstraction has 4687 states and 7413 transitions. [2018-09-10 12:47:58,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:47:58,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 7413 transitions. [2018-09-10 12:47:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-09-10 12:47:58,337 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:47:58,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:58,338 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 12:47:58,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1534111011, now seen corresponding path program 1 times [2018-09-10 12:47:58,338 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:47:58,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:58,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:47:58,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:58,341 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:47:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:47:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:47:58,927 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:47:58,927 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:47:58,928 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:47:58,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:47:58,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:47:58,932 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:47:58,932 INFO L87 Difference]: Start difference. First operand 4687 states and 7413 transitions. Second operand 6 states. [2018-09-10 12:48:33,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:48:33,794 INFO L93 Difference]: Finished difference Result 14138 states and 22630 transitions. [2018-09-10 12:48:33,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:48:33,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-09-10 12:48:33,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:48:33,848 INFO L225 Difference]: With dead ends: 14138 [2018-09-10 12:48:33,848 INFO L226 Difference]: Without dead ends: 9457 [2018-09-10 12:48:33,861 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:48:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9457 states. [2018-09-10 12:48:34,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9457 to 9310. [2018-09-10 12:48:34,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9310 states. [2018-09-10 12:48:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9310 states to 9310 states and 13127 transitions. [2018-09-10 12:48:34,148 INFO L78 Accepts]: Start accepts. Automaton has 9310 states and 13127 transitions. Word has length 120 [2018-09-10 12:48:34,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:48:34,148 INFO L480 AbstractCegarLoop]: Abstraction has 9310 states and 13127 transitions. [2018-09-10 12:48:34,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:48:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 9310 states and 13127 transitions. [2018-09-10 12:48:34,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-10 12:48:34,157 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:48:34,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:34,162 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 12:48:34,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1128142918, now seen corresponding path program 1 times [2018-09-10 12:48:34,163 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:48:34,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:34,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:48:34,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:34,164 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:48:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:48:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:48:34,539 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:48:34,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:48:34,539 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:48:34,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:48:34,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:48:34,540 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:48:34,541 INFO L87 Difference]: Start difference. First operand 9310 states and 13127 transitions. Second operand 6 states. [2018-09-10 12:48:58,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:48:58,726 INFO L93 Difference]: Finished difference Result 36347 states and 53304 transitions. [2018-09-10 12:48:58,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:48:58,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-09-10 12:48:58,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:48:58,860 INFO L225 Difference]: With dead ends: 36347 [2018-09-10 12:48:58,860 INFO L226 Difference]: Without dead ends: 27043 [2018-09-10 12:48:58,902 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:48:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27043 states. [2018-09-10 12:48:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27043 to 26784. [2018-09-10 12:48:59,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26784 states. [2018-09-10 12:48:59,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26784 states to 26784 states and 36579 transitions. [2018-09-10 12:48:59,529 INFO L78 Accepts]: Start accepts. Automaton has 26784 states and 36579 transitions. Word has length 122 [2018-09-10 12:48:59,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:48:59,530 INFO L480 AbstractCegarLoop]: Abstraction has 26784 states and 36579 transitions. [2018-09-10 12:48:59,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:48:59,532 INFO L276 IsEmpty]: Start isEmpty. Operand 26784 states and 36579 transitions. [2018-09-10 12:48:59,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-10 12:48:59,535 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:48:59,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:59,536 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 12:48:59,536 INFO L82 PathProgramCache]: Analyzing trace with hash -334796191, now seen corresponding path program 1 times [2018-09-10 12:48:59,536 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:48:59,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:59,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:48:59,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:59,542 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:48:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:48:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:48:59,883 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:48:59,884 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 12:48:59,884 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:48:59,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:48:59,885 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:48:59,885 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 12:48:59,885 INFO L87 Difference]: Start difference. First operand 26784 states and 36579 transitions. Second operand 5 states. [2018-09-10 12:49:24,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:49:24,711 INFO L93 Difference]: Finished difference Result 81342 states and 114219 transitions. [2018-09-10 12:49:24,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:49:24,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-09-10 12:49:24,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:49:24,889 INFO L225 Difference]: With dead ends: 81342 [2018-09-10 12:49:24,889 INFO L226 Difference]: Without dead ends: 54564 [2018-09-10 12:49:24,954 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 12:49:24,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54564 states. [2018-09-10 12:49:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54564 to 54086. [2018-09-10 12:49:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54086 states. [2018-09-10 12:49:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54086 states to 54086 states and 72417 transitions. [2018-09-10 12:49:26,003 INFO L78 Accepts]: Start accepts. Automaton has 54086 states and 72417 transitions. Word has length 130 [2018-09-10 12:49:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:49:26,004 INFO L480 AbstractCegarLoop]: Abstraction has 54086 states and 72417 transitions. [2018-09-10 12:49:26,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:49:26,004 INFO L276 IsEmpty]: Start isEmpty. Operand 54086 states and 72417 transitions. [2018-09-10 12:49:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-09-10 12:49:26,008 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:49:26,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:26,009 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 12:49:26,009 INFO L82 PathProgramCache]: Analyzing trace with hash -335684388, now seen corresponding path program 1 times [2018-09-10 12:49:26,009 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:49:26,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:49:26,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:49:26,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:49:26,011 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:49:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:49:26,324 WARN L175 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:49:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:49:26,715 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:49:26,715 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:49:26,715 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:49:26,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:49:26,716 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:49:26,716 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:49:26,717 INFO L87 Difference]: Start difference. First operand 54086 states and 72417 transitions. Second operand 6 states. [2018-09-10 12:49:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:49:55,402 INFO L93 Difference]: Finished difference Result 145313 states and 201272 transitions. [2018-09-10 12:49:55,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:49:55,403 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 213 [2018-09-10 12:49:55,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:49:55,665 INFO L225 Difference]: With dead ends: 145313 [2018-09-10 12:49:55,666 INFO L226 Difference]: Without dead ends: 91233 [2018-09-10 12:49:55,751 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:49:55,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91233 states. [2018-09-10 12:49:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91233 to 90606. [2018-09-10 12:49:57,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90606 states. [2018-09-10 12:49:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90606 states to 90606 states and 120819 transitions. [2018-09-10 12:49:57,278 INFO L78 Accepts]: Start accepts. Automaton has 90606 states and 120819 transitions. Word has length 213 [2018-09-10 12:49:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:49:57,279 INFO L480 AbstractCegarLoop]: Abstraction has 90606 states and 120819 transitions. [2018-09-10 12:49:57,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:49:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 90606 states and 120819 transitions. [2018-09-10 12:49:57,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-09-10 12:49:57,297 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:49:57,297 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:57,297 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 12:49:57,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1823207135, now seen corresponding path program 1 times [2018-09-10 12:49:57,298 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:49:57,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:49:57,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:49:57,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:49:57,299 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:49:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:49:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 123 proven. 159 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-09-10 12:49:57,790 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:49:57,790 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 12:49:57,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:49:57,804 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:49:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:49:57,959 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:49:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2018-09-10 12:49:58,161 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:49:58,277 WARN L175 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 1 [2018-09-10 12:49:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2018-09-10 12:49:58,724 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:49:58,724 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-10 12:49:58,724 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:49:58,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:49:58,726 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:49:58,726 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:49:58,726 INFO L87 Difference]: Start difference. First operand 90606 states and 120819 transitions. Second operand 3 states. [2018-09-10 12:50:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:50:15,385 INFO L93 Difference]: Finished difference Result 198963 states and 272415 transitions. [2018-09-10 12:50:15,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:50:15,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 346 [2018-09-10 12:50:15,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:50:15,900 INFO L225 Difference]: With dead ends: 198963 [2018-09-10 12:50:15,900 INFO L226 Difference]: Without dead ends: 108363 [2018-09-10 12:50:16,220 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 691 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:50:16,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108363 states. [2018-09-10 12:50:18,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108363 to 108180. [2018-09-10 12:50:18,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108180 states. [2018-09-10 12:50:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108180 states to 108180 states and 141823 transitions. [2018-09-10 12:50:18,786 INFO L78 Accepts]: Start accepts. Automaton has 108180 states and 141823 transitions. Word has length 346 [2018-09-10 12:50:18,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:50:18,787 INFO L480 AbstractCegarLoop]: Abstraction has 108180 states and 141823 transitions. [2018-09-10 12:50:18,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:50:18,787 INFO L276 IsEmpty]: Start isEmpty. Operand 108180 states and 141823 transitions. [2018-09-10 12:50:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-09-10 12:50:18,813 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:50:18,813 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 12:50:18,813 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 12:50:18,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1745266137, now seen corresponding path program 1 times [2018-09-10 12:50:18,814 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:50:18,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:18,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:18,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:18,815 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:50:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:19,130 WARN L175 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:50:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 82 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:50:20,252 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:50:20,252 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 12:50:20,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:20,259 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:50:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:20,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:50:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-10 12:50:20,642 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:50:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 82 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:50:21,095 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:50:21,096 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 12:50:21,096 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:50:21,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:50:21,097 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:50:21,097 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:50:21,098 INFO L87 Difference]: Start difference. First operand 108180 states and 141823 transitions. Second operand 5 states. [2018-09-10 12:50:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:50:43,886 INFO L93 Difference]: Finished difference Result 279673 states and 394552 transitions. [2018-09-10 12:50:43,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:50:43,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 349 [2018-09-10 12:50:43,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:50:44,559 INFO L225 Difference]: With dead ends: 279673 [2018-09-10 12:50:44,559 INFO L226 Difference]: Without dead ends: 171499 [2018-09-10 12:50:44,729 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 692 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:50:44,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171499 states. [2018-09-10 12:50:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171499 to 170321. [2018-09-10 12:50:48,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170321 states. [2018-09-10 12:50:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170321 states to 170321 states and 232587 transitions. [2018-09-10 12:50:48,667 INFO L78 Accepts]: Start accepts. Automaton has 170321 states and 232587 transitions. Word has length 349 [2018-09-10 12:50:48,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:50:48,668 INFO L480 AbstractCegarLoop]: Abstraction has 170321 states and 232587 transitions. [2018-09-10 12:50:48,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:50:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand 170321 states and 232587 transitions. [2018-09-10 12:50:48,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2018-09-10 12:50:48,712 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:50:48,712 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:50:48,713 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 12:50:48,713 INFO L82 PathProgramCache]: Analyzing trace with hash -153501639, now seen corresponding path program 1 times [2018-09-10 12:50:48,713 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:50:48,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:48,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:48,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:48,715 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:50:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:49,983 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:50:49,983 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:50:49,983 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:50:49,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:49,992 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:50:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:50,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-09-10 12:50:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:50:52,600 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:50:52,603 WARN L183 SmtUtils]: Removed 1 from assertion stack [2018-09-10 12:50:52,603 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-10 12:50:52,804 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:50:52,805 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:50:52,810 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:50:52,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:50:52 BoogieIcfgContainer [2018-09-10 12:50:52,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:50:52,811 INFO L168 Benchmark]: Toolchain (without parser) took 229848.10 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 240.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-10 12:50:52,812 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 12:50:52,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3998.07 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 210.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -130.1 MB). Peak memory consumption was 489.1 MB. Max. memory is 7.1 GB. [2018-09-10 12:50:52,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 370.81 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. [2018-09-10 12:50:52,814 INFO L168 Benchmark]: Boogie Preprocessor took 1890.05 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 824.7 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -834.0 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2018-09-10 12:50:52,815 INFO L168 Benchmark]: RCFGBuilder took 20473.72 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 286.3 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 231.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-10 12:50:52,816 INFO L168 Benchmark]: TraceAbstraction took 203109.03 ms. Allocated memory was 2.8 GB in the beginning and 3.3 GB in the end (delta: 436.7 MB). Free memory was 2.1 GB in the beginning and 1.2 GB in the end (delta: 907.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-10 12:50:52,825 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 3998.07 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 210.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -130.1 MB). Peak memory consumption was 489.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 370.81 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1890.05 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 824.7 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -834.0 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20473.72 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 286.3 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 231.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 203109.03 ms. Allocated memory was 2.8 GB in the beginning and 3.3 GB in the end (delta: 436.7 MB). Free memory was 2.1 GB in the beginning and 1.2 GB in the end (delta: 907.3 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: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was analyzing trace of length 758 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was doing sequential composition of 76 TransFormulas, while SimplifyDDAWithTimeout was simplifying term of DAG size 3. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 203.0s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 182.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7291 SDtfs, 45282 SDslu, 5026 SDs, 0 SdLazy, 62864 SolverSat, 21760 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 154.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1449 GetRequests, 1397 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170321occurred in iteration=7, 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: 10.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 2911 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2023 NumberOfCodeBlocks, 2023 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2707 ConstructedInterpolants, 0 QuantifiedInterpolants, 1886212 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1159 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 1446/1793 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_label33_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-50-52-841.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label33_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-50-52-841.csv Completed graceful shutdown