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_label11_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:36:03,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:36:03,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:36:03,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:36:03,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:36:03,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:36:03,831 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:36:03,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:36:03,835 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:36:03,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:36:03,836 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:36:03,837 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:36:03,838 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:36:03,838 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:36:03,840 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:36:03,840 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:36:03,841 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:36:03,843 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:36:03,845 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:36:03,846 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:36:03,848 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:36:03,849 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:36:03,851 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:36:03,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:36:03,852 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:36:03,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:36:03,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:36:03,855 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:36:03,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:36:03,857 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:36:03,857 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:36:03,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:36:03,859 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:36:03,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:36:03,860 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:36:03,862 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:36:03,862 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 12:36:03,883 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:36:03,883 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:36:03,884 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:36:03,885 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:36:03,885 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:36:03,885 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:36:03,885 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:36:03,886 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:36:03,886 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:36:03,886 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:36:03,886 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:36:03,887 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:36:03,887 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:36:03,887 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:36:03,887 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:36:03,888 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:36:03,888 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:36:03,888 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:36:03,888 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:36:03,889 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:36:03,889 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:36:03,889 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:36:03,889 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:36:03,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:36:03,890 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:36:03,890 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:36:03,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:36:03,891 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:36:03,892 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:36:03,892 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:36:03,892 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:36:03,892 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:36:03,892 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:36:03,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:36:03,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:36:03,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:36:03,975 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:36:03,975 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:36:03,976 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label11_false-unreach-call.c [2018-07-24 12:36:04,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9815386/c0b391787eea4427a26625675540845d/FLAG9739d298f [2018-07-24 12:36:04,935 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:36:04,938 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label11_false-unreach-call.c [2018-07-24 12:36:04,988 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9815386/c0b391787eea4427a26625675540845d/FLAG9739d298f [2018-07-24 12:36:05,004 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9815386/c0b391787eea4427a26625675540845d [2018-07-24 12:36:05,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:36:05,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:36:05,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:36:05,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:36:05,028 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:36:05,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:36:05" (1/1) ... [2018-07-24 12:36:05,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cca5ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:05, skipping insertion in model container [2018-07-24 12:36:05,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:36:05" (1/1) ... [2018-07-24 12:36:05,479 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:36:07,166 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:36:07,185 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:36:08,290 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:36:09,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09 WrapperNode [2018-07-24 12:36:09,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:36:09,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:36:09,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:36:09,078 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:36:09,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:09,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:09,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:36:09,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:36:09,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:36:09,399 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:36:10,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:10,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:10,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:10,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:11,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:11,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:11,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (1/1) ... [2018-07-24 12:36:11,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:36:11,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:36:11,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:36:11,275 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:36:11,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (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 12:36:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:36:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:36:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 12:36:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 12:36:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:36:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:36:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output5 [2018-07-24 12:36:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output5 [2018-07-24 12:36:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:36:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:36:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:36:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:36:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 12:36:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 12:36:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output6 [2018-07-24 12:36:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output6 [2018-07-24 12:36:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:36:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:36:29,929 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:36:29,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:36:29 BoogieIcfgContainer [2018-07-24 12:36:29,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:36:29,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:36:29,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:36:29,935 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:36:29,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:36:05" (1/3) ... [2018-07-24 12:36:29,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560aa9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:36:29, skipping insertion in model container [2018-07-24 12:36:29,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:09" (2/3) ... [2018-07-24 12:36:29,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560aa9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:36:29, skipping insertion in model container [2018-07-24 12:36:29,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:36:29" (3/3) ... [2018-07-24 12:36:29,938 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label11_false-unreach-call.c [2018-07-24 12:36:29,948 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:36:29,959 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:36:30,025 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:36:30,026 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:36:30,026 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:36:30,026 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:36:30,026 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:36:30,026 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:36:30,026 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:36:30,027 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:36:30,027 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:36:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-24 12:36:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-24 12:36:30,088 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:36:30,089 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] [2018-07-24 12:36:30,089 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:36:30,095 INFO L82 PathProgramCache]: Analyzing trace with hash 916526064, now seen corresponding path program 1 times [2018-07-24 12:36:30,098 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:36:30,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:36:30,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:36:30,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:36:30,148 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:36:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:36:30,502 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:36:30,612 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 12:36:30,619 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:36:30,620 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:36:30,620 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:36:30,628 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:36:30,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:36:30,644 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:36:30,647 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-24 12:36:50,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:36:50,169 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-07-24 12:36:50,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:36:50,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-07-24 12:36:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:36:50,228 INFO L225 Difference]: With dead ends: 4995 [2018-07-24 12:36:50,228 INFO L226 Difference]: Without dead ends: 3215 [2018-07-24 12:36:50,244 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:36:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-07-24 12:36:50,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-07-24 12:36:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-07-24 12:36:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-07-24 12:36:50,454 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 23 [2018-07-24 12:36:50,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:36:50,454 INFO L471 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-07-24 12:36:50,455 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:36:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-07-24 12:36:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-24 12:36:50,471 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:36:50,472 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:36:50,472 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:36:50,472 INFO L82 PathProgramCache]: Analyzing trace with hash 969433356, now seen corresponding path program 1 times [2018-07-24 12:36:50,473 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:36:50,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:36:50,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:36:50,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:36:50,474 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:36:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:36:50,902 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:36:50,903 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:36:50,903 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 12:36:50,903 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:36:50,905 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:36:50,906 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:36:50,906 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 12:36:50,906 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 5 states. [2018-07-24 12:37:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:37:24,144 INFO L93 Difference]: Finished difference Result 9667 states and 17611 transitions. [2018-07-24 12:37:24,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:37:24,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-07-24 12:37:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:37:24,189 INFO L225 Difference]: With dead ends: 9667 [2018-07-24 12:37:24,189 INFO L226 Difference]: Without dead ends: 6460 [2018-07-24 12:37:24,200 INFO L573 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 [2018-07-24 12:37:24,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6460 states. [2018-07-24 12:37:24,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6460 to 6349. [2018-07-24 12:37:24,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6349 states. [2018-07-24 12:37:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6349 states to 6349 states and 9904 transitions. [2018-07-24 12:37:24,381 INFO L78 Accepts]: Start accepts. Automaton has 6349 states and 9904 transitions. Word has length 97 [2018-07-24 12:37:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:37:24,382 INFO L471 AbstractCegarLoop]: Abstraction has 6349 states and 9904 transitions. [2018-07-24 12:37:24,382 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:37:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6349 states and 9904 transitions. [2018-07-24 12:37:24,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-24 12:37:24,386 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:37:24,387 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:37:24,387 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:37:24,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1729914780, now seen corresponding path program 1 times [2018-07-24 12:37:24,387 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:37:24,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:37:24,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:37:24,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:37:24,389 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:37:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:37:24,669 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:37:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:37:25,047 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:37:25,047 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:37:25,047 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:37:25,048 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:37:25,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:37:25,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:37:25,050 INFO L87 Difference]: Start difference. First operand 6349 states and 9904 transitions. Second operand 6 states. [2018-07-24 12:37:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:37:52,766 INFO L93 Difference]: Finished difference Result 24443 states and 39238 transitions. [2018-07-24 12:37:52,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:37:52,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-07-24 12:37:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:37:52,870 INFO L225 Difference]: With dead ends: 24443 [2018-07-24 12:37:52,870 INFO L226 Difference]: Without dead ends: 18100 [2018-07-24 12:37:52,901 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:37:52,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18100 states. [2018-07-24 12:37:53,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18100 to 17860. [2018-07-24 12:37:53,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17860 states. [2018-07-24 12:37:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17860 states to 17860 states and 26237 transitions. [2018-07-24 12:37:53,296 INFO L78 Accepts]: Start accepts. Automaton has 17860 states and 26237 transitions. Word has length 102 [2018-07-24 12:37:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:37:53,297 INFO L471 AbstractCegarLoop]: Abstraction has 17860 states and 26237 transitions. [2018-07-24 12:37:53,297 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:37:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 17860 states and 26237 transitions. [2018-07-24 12:37:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-24 12:37:53,300 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:37:53,301 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:37:53,301 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:37:53,301 INFO L82 PathProgramCache]: Analyzing trace with hash 405401986, now seen corresponding path program 1 times [2018-07-24 12:37:53,301 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:37:53,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:37:53,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:37:53,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:37:53,303 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:37:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:37:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:37:53,594 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:37:53,595 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:37:53,595 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:37:53,595 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:37:53,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:37:53,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:37:53,596 INFO L87 Difference]: Start difference. First operand 17860 states and 26237 transitions. Second operand 6 states. [2018-07-24 12:38:18,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:38:18,062 INFO L93 Difference]: Finished difference Result 47945 states and 72222 transitions. [2018-07-24 12:38:18,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:38:18,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-07-24 12:38:18,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:38:18,168 INFO L225 Difference]: With dead ends: 47945 [2018-07-24 12:38:18,168 INFO L226 Difference]: Without dead ends: 30091 [2018-07-24 12:38:18,236 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 12:38:18,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30091 states. [2018-07-24 12:38:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30091 to 29865. [2018-07-24 12:38:18,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29865 states. [2018-07-24 12:38:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29865 states to 29865 states and 41149 transitions. [2018-07-24 12:38:18,806 INFO L78 Accepts]: Start accepts. Automaton has 29865 states and 41149 transitions. Word has length 133 [2018-07-24 12:38:18,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:38:18,807 INFO L471 AbstractCegarLoop]: Abstraction has 29865 states and 41149 transitions. [2018-07-24 12:38:18,807 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:38:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 29865 states and 41149 transitions. [2018-07-24 12:38:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-07-24 12:38:18,812 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:38:18,812 INFO L353 BasicCegarLoop]: trace histogram [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 12:38:18,812 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:38:18,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1896386989, now seen corresponding path program 1 times [2018-07-24 12:38:18,813 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:38:18,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:38:18,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:38:18,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:38:18,814 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:38:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:38:19,163 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:38:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:38:19,561 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:38:19,561 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:38:19,562 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:38:19,562 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:38:19,563 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:38:19,563 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:38:19,563 INFO L87 Difference]: Start difference. First operand 29865 states and 41149 transitions. Second operand 6 states. [2018-07-24 12:38:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:38:39,080 INFO L93 Difference]: Finished difference Result 66208 states and 94079 transitions. [2018-07-24 12:38:39,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:38:39,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 188 [2018-07-24 12:38:39,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:38:39,194 INFO L225 Difference]: With dead ends: 66208 [2018-07-24 12:38:39,195 INFO L226 Difference]: Without dead ends: 36349 [2018-07-24 12:38:39,235 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:38:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36349 states. [2018-07-24 12:38:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36349 to 36152. [2018-07-24 12:38:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36152 states. [2018-07-24 12:38:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36152 states to 36152 states and 48653 transitions. [2018-07-24 12:38:39,853 INFO L78 Accepts]: Start accepts. Automaton has 36152 states and 48653 transitions. Word has length 188 [2018-07-24 12:38:39,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:38:39,854 INFO L471 AbstractCegarLoop]: Abstraction has 36152 states and 48653 transitions. [2018-07-24 12:38:39,854 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:38:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 36152 states and 48653 transitions. [2018-07-24 12:38:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-07-24 12:38:39,861 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:38:39,862 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:39,862 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:38:39,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1368240423, now seen corresponding path program 1 times [2018-07-24 12:38:39,862 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:38:39,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:38:39,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:38:39,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:38:39,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:38:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:38:40,347 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 32 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:38:40,348 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:38:40,348 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 12:38:40,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:38:40,357 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:38:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:38:40,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:38:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 12:38:40,545 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:38:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 12:38:40,773 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:38:40,773 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2018-07-24 12:38:40,773 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:38:40,774 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:38:40,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:38:40,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:38:40,775 INFO L87 Difference]: Start difference. First operand 36152 states and 48653 transitions. Second operand 3 states. [2018-07-24 12:38:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:38:58,204 INFO L93 Difference]: Finished difference Result 106261 states and 148916 transitions. [2018-07-24 12:38:58,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:38:58,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2018-07-24 12:38:58,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:38:58,478 INFO L225 Difference]: With dead ends: 106261 [2018-07-24 12:38:58,478 INFO L226 Difference]: Without dead ends: 70115 [2018-07-24 12:38:58,574 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:38:58,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70115 states. [2018-07-24 12:39:00,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70115 to 70083. [2018-07-24 12:39:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70083 states. [2018-07-24 12:39:00,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70083 states to 70083 states and 90022 transitions. [2018-07-24 12:39:00,353 INFO L78 Accepts]: Start accepts. Automaton has 70083 states and 90022 transitions. Word has length 199 [2018-07-24 12:39:00,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:39:00,355 INFO L471 AbstractCegarLoop]: Abstraction has 70083 states and 90022 transitions. [2018-07-24 12:39:00,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:39:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 70083 states and 90022 transitions. [2018-07-24 12:39:00,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-07-24 12:39:00,373 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:39:00,373 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:00,374 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:39:00,374 INFO L82 PathProgramCache]: Analyzing trace with hash -688528000, now seen corresponding path program 1 times [2018-07-24 12:39:00,374 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:39:00,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:00,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:00,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:00,375 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:39:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 32 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:39:00,896 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:39:00,896 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 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 [2018-07-24 12:39:00,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:00,910 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:39:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:01,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:39:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-24 12:39:01,583 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:39:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 32 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:39:02,296 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:39:02,297 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 12:39:02,297 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:39:02,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:39:02,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:39:02,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:39:02,298 INFO L87 Difference]: Start difference. First operand 70083 states and 90022 transitions. Second operand 5 states. [2018-07-24 12:39:29,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:39:29,800 INFO L93 Difference]: Finished difference Result 180500 states and 246125 transitions. [2018-07-24 12:39:29,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:39:29,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2018-07-24 12:39:29,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:39:30,257 INFO L225 Difference]: With dead ends: 180500 [2018-07-24 12:39:30,257 INFO L226 Difference]: Without dead ends: 110423 [2018-07-24 12:39:30,394 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 519 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:39:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110423 states. [2018-07-24 12:39:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110423 to 109899. [2018-07-24 12:39:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109899 states. [2018-07-24 12:39:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109899 states to 109899 states and 144472 transitions. [2018-07-24 12:39:32,833 INFO L78 Accepts]: Start accepts. Automaton has 109899 states and 144472 transitions. Word has length 262 [2018-07-24 12:39:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:39:32,834 INFO L471 AbstractCegarLoop]: Abstraction has 109899 states and 144472 transitions. [2018-07-24 12:39:32,834 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:39:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 109899 states and 144472 transitions. [2018-07-24 12:39:32,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-07-24 12:39:32,846 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:39:32,847 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 12:39:32,847 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:39:32,847 INFO L82 PathProgramCache]: Analyzing trace with hash 75057070, now seen corresponding path program 1 times [2018-07-24 12:39:32,847 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:39:32,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:32,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:32,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:32,848 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:39:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 48 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-24 12:39:33,114 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:39:33,114 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 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 [2018-07-24 12:39:33,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:33,122 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:39:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:33,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:39:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-07-24 12:39:33,311 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:39:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 48 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-24 12:39:33,613 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:39:33,613 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 12:39:33,614 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:39:33,614 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:39:33,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:39:33,615 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:39:33,615 INFO L87 Difference]: Start difference. First operand 109899 states and 144472 transitions. Second operand 5 states. [2018-07-24 12:39:56,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:39:56,851 INFO L93 Difference]: Finished difference Result 329768 states and 448337 transitions. [2018-07-24 12:39:56,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:39:56,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2018-07-24 12:39:56,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:39:57,497 INFO L225 Difference]: With dead ends: 329768 [2018-07-24 12:39:57,497 INFO L226 Difference]: Without dead ends: 219875 [2018-07-24 12:39:57,648 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:39:57,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219875 states. Received shutdown request... [2018-07-24 12:40:00,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219875 to 219096. [2018-07-24 12:40:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219096 states. [2018-07-24 12:40:00,692 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:40:00,697 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:40:00,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:40:00 BoogieIcfgContainer [2018-07-24 12:40:00,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:40:00,698 INFO L168 Benchmark]: Toolchain (without parser) took 235679.85 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -236.7 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-07-24 12:40:00,699 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 12:40:00,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4056.06 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 212.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -124.2 MB). Peak memory consumption was 484.2 MB. Max. memory is 7.1 GB. [2018-07-24 12:40:00,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 320.55 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2018-07-24 12:40:00,702 INFO L168 Benchmark]: Boogie Preprocessor took 1875.66 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 825.2 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -828.1 MB). Peak memory consumption was 129.1 MB. Max. memory is 7.1 GB. [2018-07-24 12:40:00,703 INFO L168 Benchmark]: RCFGBuilder took 18656.24 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 298.3 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 222.2 MB). Peak memory consumption was 997.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:40:00,704 INFO L168 Benchmark]: TraceAbstraction took 210766.12 ms. Allocated memory was 2.9 GB in the beginning and 3.8 GB in the end (delta: 901.8 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 444.0 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-07-24 12:40:00,711 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 4056.06 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 212.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -124.2 MB). Peak memory consumption was 484.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 320.55 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1875.66 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 825.2 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -828.1 MB). Peak memory consumption was 129.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18656.24 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 298.3 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 222.2 MB). Peak memory consumption was 997.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210766.12 ms. Allocated memory was 2.9 GB in the beginning and 3.8 GB in the end (delta: 901.8 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 444.0 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 64). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 210.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 195.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6058 SDtfs, 45292 SDslu, 4890 SDs, 0 SdLazy, 70270 SolverSat, 20236 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 166.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1547 GetRequests, 1487 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109899occurred 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: 9.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1332 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2025 NumberOfCodeBlocks, 2025 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2752 ConstructedInterpolants, 0 QuantifiedInterpolants, 1500730 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1429 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 1023/1516 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_label11_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-40-00-729.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label11_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-40-00-729.csv Completed graceful shutdown