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/Problem12_label27_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:10:32,835 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:10:32,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:10:32,850 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:10:32,851 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:10:32,852 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:10:32,853 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:10:32,855 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:10:32,857 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:10:32,858 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:10:32,859 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:10:32,859 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:10:32,860 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:10:32,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:10:32,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:10:32,863 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:10:32,864 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:10:32,866 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:10:32,868 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:10:32,870 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:10:32,871 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:10:32,872 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:10:32,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:10:32,875 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:10:32,875 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:10:32,876 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:10:32,877 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:10:32,878 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:10:32,879 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:10:32,880 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:10:32,880 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:10:32,881 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:10:32,881 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:10:32,881 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:10:32,882 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:10:32,883 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:10:32,883 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 14:10:32,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:10:32,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:10:32,900 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:10:32,900 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:10:32,900 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:10:32,900 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:10:32,901 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:10:32,901 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:10:32,901 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:10:32,901 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:10:32,901 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:10:32,902 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:10:32,902 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:10:32,903 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:10:32,903 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:10:32,903 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:10:32,903 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:10:32,903 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:10:32,904 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:10:32,904 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:10:32,904 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:10:32,904 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:10:32,905 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:10:32,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:10:32,905 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:10:32,905 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:10:32,905 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:10:32,906 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:10:32,906 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:10:32,906 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:10:32,906 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:10:32,907 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:10:32,907 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:10:32,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:10:32,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:10:32,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:10:32,979 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:10:32,980 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:10:32,980 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label27_true-unreach-call.c [2018-07-24 14:10:33,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7d322d2/82c6bf4a400a405782184db148406c73/FLAGafd313e66 [2018-07-24 14:10:33,868 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:10:33,869 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label27_true-unreach-call.c [2018-07-24 14:10:33,909 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7d322d2/82c6bf4a400a405782184db148406c73/FLAGafd313e66 [2018-07-24 14:10:33,929 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7d322d2/82c6bf4a400a405782184db148406c73 [2018-07-24 14:10:33,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:10:33,945 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:10:33,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:10:33,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:10:33,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:10:33,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:10:33" (1/1) ... [2018-07-24 14:10:33,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdf07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:33, skipping insertion in model container [2018-07-24 14:10:33,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:10:33" (1/1) ... [2018-07-24 14:10:34,298 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:10:35,438 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:10:35,455 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:10:36,129 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:10:36,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36 WrapperNode [2018-07-24 14:10:36,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:10:36,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:10:36,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:10:36,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:10:36,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:36,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:36,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:10:36,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:10:36,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:10:36,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:10:37,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:37,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:37,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:37,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:37,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:37,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:37,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (1/1) ... [2018-07-24 14:10:37,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:10:37,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:10:37,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:10:37,648 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:10:37,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (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 14:10:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:10:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:10:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:10:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:10:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:10:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:10:37,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:10:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:10:37,725 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:10:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:10:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:10:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:10:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:10:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:10:47,521 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:10:47,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:10:47 BoogieIcfgContainer [2018-07-24 14:10:47,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:10:47,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:10:47,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:10:47,535 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:10:47,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:10:33" (1/3) ... [2018-07-24 14:10:47,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9d6b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:10:47, skipping insertion in model container [2018-07-24 14:10:47,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:36" (2/3) ... [2018-07-24 14:10:47,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9d6b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:10:47, skipping insertion in model container [2018-07-24 14:10:47,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:10:47" (3/3) ... [2018-07-24 14:10:47,541 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label27_true-unreach-call.c [2018-07-24 14:10:47,554 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:10:47,565 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:10:47,628 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:10:47,629 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:10:47,629 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:10:47,629 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:10:47,629 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:10:47,629 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:10:47,630 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:10:47,630 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:10:47,630 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:10:47,669 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 14:10:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-24 14:10:47,677 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:10:47,679 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:10:47,679 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:10:47,685 INFO L82 PathProgramCache]: Analyzing trace with hash -993633692, now seen corresponding path program 1 times [2018-07-24 14:10:47,690 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:10:47,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:10:47,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:10:47,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:10:47,749 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:10:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:10:48,226 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 14:10:48,228 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:10:48,229 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:10:48,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:10:48,235 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:10:48,252 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:10:48,253 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:10:48,256 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-07-24 14:11:00,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:00,501 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-07-24 14:11:00,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:11:00,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-07-24 14:11:00,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:00,550 INFO L225 Difference]: With dead ends: 3234 [2018-07-24 14:11:00,551 INFO L226 Difference]: Without dead ends: 2388 [2018-07-24 14:11:00,562 INFO L573 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 [2018-07-24 14:11:00,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-07-24 14:11:00,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 1604. [2018-07-24 14:11:00,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 14:11:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2600 transitions. [2018-07-24 14:11:00,744 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2600 transitions. Word has length 38 [2018-07-24 14:11:00,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:00,744 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2600 transitions. [2018-07-24 14:11:00,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:11:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2600 transitions. [2018-07-24 14:11:00,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-24 14:11:00,756 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:00,757 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:00,760 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:11:00,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2066474274, now seen corresponding path program 1 times [2018-07-24 14:11:00,760 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:00,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:00,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:00,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:00,762 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:01,206 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:01,206 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:11:01,206 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:01,208 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:11:01,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:11:01,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:11:01,209 INFO L87 Difference]: Start difference. First operand 1604 states and 2600 transitions. Second operand 5 states. [2018-07-24 14:11:14,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:14,231 INFO L93 Difference]: Finished difference Result 4873 states and 7923 transitions. [2018-07-24 14:11:14,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:11:14,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2018-07-24 14:11:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:14,254 INFO L225 Difference]: With dead ends: 4873 [2018-07-24 14:11:14,254 INFO L226 Difference]: Without dead ends: 3275 [2018-07-24 14:11:14,260 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:11:14,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-07-24 14:11:14,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-07-24 14:11:14,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-07-24 14:11:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4816 transitions. [2018-07-24 14:11:14,370 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4816 transitions. Word has length 118 [2018-07-24 14:11:14,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:14,370 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 4816 transitions. [2018-07-24 14:11:14,371 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:11:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4816 transitions. [2018-07-24 14:11:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-24 14:11:14,375 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:14,375 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:14,375 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:11:14,375 INFO L82 PathProgramCache]: Analyzing trace with hash -470921555, now seen corresponding path program 1 times [2018-07-24 14:11:14,376 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:14,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:14,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:14,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:14,377 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:14,752 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:14,753 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:11:14,753 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:14,753 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:11:14,754 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:11:14,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:11:14,754 INFO L87 Difference]: Start difference. First operand 3241 states and 4816 transitions. Second operand 6 states. [2018-07-24 14:11:27,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:27,690 INFO L93 Difference]: Finished difference Result 12870 states and 19656 transitions. [2018-07-24 14:11:27,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:11:27,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-07-24 14:11:27,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:27,748 INFO L225 Difference]: With dead ends: 12870 [2018-07-24 14:11:27,748 INFO L226 Difference]: Without dead ends: 9635 [2018-07-24 14:11:27,768 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 14:11:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2018-07-24 14:11:28,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 9567. [2018-07-24 14:11:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9567 states. [2018-07-24 14:11:28,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9567 states to 9567 states and 13823 transitions. [2018-07-24 14:11:28,029 INFO L78 Accepts]: Start accepts. Automaton has 9567 states and 13823 transitions. Word has length 147 [2018-07-24 14:11:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:28,030 INFO L471 AbstractCegarLoop]: Abstraction has 9567 states and 13823 transitions. [2018-07-24 14:11:28,030 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:11:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9567 states and 13823 transitions. [2018-07-24 14:11:28,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-24 14:11:28,038 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:28,039 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:28,039 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:11:28,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1790181547, now seen corresponding path program 1 times [2018-07-24 14:11:28,039 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:28,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:28,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:28,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:28,041 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:28,317 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:11:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:28,449 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:28,449 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:11:28,449 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:28,450 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:11:28,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:11:28,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:11:28,450 INFO L87 Difference]: Start difference. First operand 9567 states and 13823 transitions. Second operand 6 states. [2018-07-24 14:11:36,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:36,458 INFO L93 Difference]: Finished difference Result 25915 states and 39231 transitions. [2018-07-24 14:11:36,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:11:36,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2018-07-24 14:11:36,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:36,543 INFO L225 Difference]: With dead ends: 25915 [2018-07-24 14:11:36,543 INFO L226 Difference]: Without dead ends: 16354 [2018-07-24 14:11:36,577 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 14:11:36,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16354 states. [2018-07-24 14:11:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16354 to 16174. [2018-07-24 14:11:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16174 states. [2018-07-24 14:11:36,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16174 states to 16174 states and 23344 transitions. [2018-07-24 14:11:36,974 INFO L78 Accepts]: Start accepts. Automaton has 16174 states and 23344 transitions. Word has length 159 [2018-07-24 14:11:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:36,975 INFO L471 AbstractCegarLoop]: Abstraction has 16174 states and 23344 transitions. [2018-07-24 14:11:36,975 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:11:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 16174 states and 23344 transitions. [2018-07-24 14:11:36,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-24 14:11:36,979 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:36,979 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:36,979 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:11:36,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1588670579, now seen corresponding path program 1 times [2018-07-24 14:11:36,982 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:36,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:36,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:36,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:36,984 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:37,281 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:11:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:37,332 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:37,333 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:11:37,333 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:37,333 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:11:37,334 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:11:37,334 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:11:37,334 INFO L87 Difference]: Start difference. First operand 16174 states and 23344 transitions. Second operand 6 states. [2018-07-24 14:11:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:45,566 INFO L93 Difference]: Finished difference Result 39076 states and 58115 transitions. [2018-07-24 14:11:45,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:11:45,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-07-24 14:11:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:45,673 INFO L225 Difference]: With dead ends: 39076 [2018-07-24 14:11:45,673 INFO L226 Difference]: Without dead ends: 22908 [2018-07-24 14:11:45,731 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 14:11:45,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22908 states. [2018-07-24 14:11:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22908 to 22784. [2018-07-24 14:11:46,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22784 states. [2018-07-24 14:11:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22784 states to 22784 states and 31228 transitions. [2018-07-24 14:11:46,186 INFO L78 Accepts]: Start accepts. Automaton has 22784 states and 31228 transitions. Word has length 163 [2018-07-24 14:11:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:46,187 INFO L471 AbstractCegarLoop]: Abstraction has 22784 states and 31228 transitions. [2018-07-24 14:11:46,187 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:11:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 22784 states and 31228 transitions. [2018-07-24 14:11:46,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-24 14:11:46,191 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:46,191 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:46,191 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:11:46,192 INFO L82 PathProgramCache]: Analyzing trace with hash -638709574, now seen corresponding path program 1 times [2018-07-24 14:11:46,192 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:46,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:46,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:46,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:46,193 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:46,428 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:46,428 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:11:46,428 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:46,429 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:11:46,429 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:11:46,429 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:11:46,430 INFO L87 Difference]: Start difference. First operand 22784 states and 31228 transitions. Second operand 4 states. [2018-07-24 14:11:56,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:56,526 INFO L93 Difference]: Finished difference Result 55063 states and 77275 transitions. [2018-07-24 14:11:56,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:11:56,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 184 [2018-07-24 14:11:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:56,647 INFO L225 Difference]: With dead ends: 55063 [2018-07-24 14:11:56,648 INFO L226 Difference]: Without dead ends: 32285 [2018-07-24 14:11:56,699 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:11:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32285 states. [2018-07-24 14:11:57,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32285 to 32281. [2018-07-24 14:11:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32281 states. [2018-07-24 14:11:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32281 states to 32281 states and 44030 transitions. [2018-07-24 14:11:57,322 INFO L78 Accepts]: Start accepts. Automaton has 32281 states and 44030 transitions. Word has length 184 [2018-07-24 14:11:57,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:57,323 INFO L471 AbstractCegarLoop]: Abstraction has 32281 states and 44030 transitions. [2018-07-24 14:11:57,323 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:11:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand 32281 states and 44030 transitions. [2018-07-24 14:11:57,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-24 14:11:57,327 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:57,327 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:57,327 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:11:57,328 INFO L82 PathProgramCache]: Analyzing trace with hash 659902685, now seen corresponding path program 1 times [2018-07-24 14:11:57,328 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:57,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:57,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:57,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:57,329 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:57,559 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:57,559 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:11:57,559 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:57,560 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:11:57,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:11:57,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:11:57,567 INFO L87 Difference]: Start difference. First operand 32281 states and 44030 transitions. Second operand 4 states. [2018-07-24 14:12:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:07,354 INFO L93 Difference]: Finished difference Result 116494 states and 170268 transitions. [2018-07-24 14:12:07,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:12:07,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2018-07-24 14:12:07,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:07,671 INFO L225 Difference]: With dead ends: 116494 [2018-07-24 14:12:07,672 INFO L226 Difference]: Without dead ends: 84219 [2018-07-24 14:12:07,797 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:12:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84219 states. [2018-07-24 14:12:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84219 to 84217. [2018-07-24 14:12:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84217 states. [2018-07-24 14:12:09,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84217 states to 84217 states and 113265 transitions. [2018-07-24 14:12:09,874 INFO L78 Accepts]: Start accepts. Automaton has 84217 states and 113265 transitions. Word has length 187 [2018-07-24 14:12:09,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:09,875 INFO L471 AbstractCegarLoop]: Abstraction has 84217 states and 113265 transitions. [2018-07-24 14:12:09,875 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:12:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 84217 states and 113265 transitions. [2018-07-24 14:12:09,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-07-24 14:12:09,921 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:09,921 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:12:09,921 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:12:09,922 INFO L82 PathProgramCache]: Analyzing trace with hash 14101186, now seen corresponding path program 1 times [2018-07-24 14:12:09,922 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:09,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:09,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:09,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:09,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:10,209 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:12:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 93 proven. 185 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-07-24 14:12:10,663 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:12:10,663 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 14:12:10,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:10,679 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:12:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:10,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:12:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2018-07-24 14:12:11,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:12:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 93 proven. 185 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-07-24 14:12:12,300 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:12:12,300 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 14:12:12,301 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:12:12,302 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:12:12,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:12:12,302 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:12:12,303 INFO L87 Difference]: Start difference. First operand 84217 states and 113265 transitions. Second operand 5 states. [2018-07-24 14:12:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:23,554 INFO L93 Difference]: Finished difference Result 193448 states and 264535 transitions. [2018-07-24 14:12:23,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:12:23,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 338 [2018-07-24 14:12:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:24,163 INFO L225 Difference]: With dead ends: 193448 [2018-07-24 14:12:24,164 INFO L226 Difference]: Without dead ends: 109237 [2018-07-24 14:12:24,505 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 671 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:12:24,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109237 states. [2018-07-24 14:12:26,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109237 to 109134. [2018-07-24 14:12:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109134 states. [2018-07-24 14:12:28,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109134 states to 109134 states and 143709 transitions. [2018-07-24 14:12:28,020 INFO L78 Accepts]: Start accepts. Automaton has 109134 states and 143709 transitions. Word has length 338 [2018-07-24 14:12:28,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:28,021 INFO L471 AbstractCegarLoop]: Abstraction has 109134 states and 143709 transitions. [2018-07-24 14:12:28,021 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:12:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 109134 states and 143709 transitions. [2018-07-24 14:12:28,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-07-24 14:12:28,058 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:28,058 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:28,058 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:12:28,059 INFO L82 PathProgramCache]: Analyzing trace with hash 2102202640, now seen corresponding path program 1 times [2018-07-24 14:12:28,059 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:28,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:28,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:28,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:28,061 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:28,460 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:12:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 14:12:28,781 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:12:28,781 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 14:12:28,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:28,797 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:12:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:28,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:12:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:12:29,037 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:12:29,210 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:12:29,242 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:12:29,243 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2018-07-24 14:12:29,243 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:12:29,244 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:12:29,244 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:12:29,244 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:12:29,244 INFO L87 Difference]: Start difference. First operand 109134 states and 143709 transitions. Second operand 3 states. [2018-07-24 14:12:36,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:36,255 INFO L93 Difference]: Finished difference Result 249670 states and 329951 transitions. [2018-07-24 14:12:36,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:12:36,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2018-07-24 14:12:36,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:36,741 INFO L225 Difference]: With dead ends: 249670 [2018-07-24 14:12:36,741 INFO L226 Difference]: Without dead ends: 140542 [2018-07-24 14:12:37,015 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 705 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:12:37,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140542 states. [2018-07-24 14:12:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140542 to 140539. [2018-07-24 14:12:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140539 states. [2018-07-24 14:12:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140539 states to 140539 states and 175166 transitions. [2018-07-24 14:12:39,255 INFO L78 Accepts]: Start accepts. Automaton has 140539 states and 175166 transitions. Word has length 352 [2018-07-24 14:12:39,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:39,256 INFO L471 AbstractCegarLoop]: Abstraction has 140539 states and 175166 transitions. [2018-07-24 14:12:39,256 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:12:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 140539 states and 175166 transitions. [2018-07-24 14:12:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-07-24 14:12:39,290 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:39,291 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:12:39,291 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:12:39,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2132831411, now seen corresponding path program 1 times [2018-07-24 14:12:39,292 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:39,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:39,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:39,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:39,293 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 9 proven. 56 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-07-24 14:12:40,925 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:12:40,925 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 14:12:40,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:40,934 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:12:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:41,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:12:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-07-24 14:12:41,308 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:12:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 62 proven. 144 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:12:42,368 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:12:42,369 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-07-24 14:12:42,369 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:12:42,369 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:12:42,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:12:42,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:12:42,370 INFO L87 Difference]: Start difference. First operand 140539 states and 175166 transitions. Second operand 5 states. [2018-07-24 14:12:53,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:53,883 INFO L93 Difference]: Finished difference Result 304020 states and 381378 transitions. [2018-07-24 14:12:53,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 14:12:53,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 365 [2018-07-24 14:12:53,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:54,414 INFO L225 Difference]: With dead ends: 304020 [2018-07-24 14:12:54,414 INFO L226 Difference]: Without dead ends: 164255 [2018-07-24 14:12:54,627 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 728 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-07-24 14:12:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164255 states. [2018-07-24 14:12:57,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164255 to 162589. [2018-07-24 14:12:57,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162589 states. [2018-07-24 14:12:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162589 states to 162589 states and 201403 transitions. [2018-07-24 14:12:57,951 INFO L78 Accepts]: Start accepts. Automaton has 162589 states and 201403 transitions. Word has length 365 [2018-07-24 14:12:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:57,952 INFO L471 AbstractCegarLoop]: Abstraction has 162589 states and 201403 transitions. [2018-07-24 14:12:57,952 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:12:57,952 INFO L276 IsEmpty]: Start isEmpty. Operand 162589 states and 201403 transitions. [2018-07-24 14:12:57,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-07-24 14:12:57,982 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:57,982 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:12:57,982 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:12:57,983 INFO L82 PathProgramCache]: Analyzing trace with hash 153438897, now seen corresponding path program 1 times [2018-07-24 14:12:57,983 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:57,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:57,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:57,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:57,984 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 172 proven. 217 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:12:59,941 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:12:59,941 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:12:59,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:59,948 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:13:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:00,111 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:13:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 323 proven. 39 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-07-24 14:13:00,607 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:13:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 103 proven. 286 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:13:05,587 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:13:05,587 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:13:05,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:05,605 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:13:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:05,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:13:06,389 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 323 proven. 39 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-07-24 14:13:06,389 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:13:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 103 proven. 286 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:13:07,135 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:13:07,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9, 9, 9] total 21 [2018-07-24 14:13:07,135 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:13:07,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-24 14:13:07,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-24 14:13:07,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2018-07-24 14:13:07,137 INFO L87 Difference]: Start difference. First operand 162589 states and 201403 transitions. Second operand 16 states. [2018-07-24 14:13:22,858 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2018-07-24 14:13:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:13:46,841 INFO L93 Difference]: Finished difference Result 406037 states and 494761 transitions. [2018-07-24 14:13:46,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-07-24 14:13:46,841 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 441 [2018-07-24 14:13:46,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:13:47,471 INFO L225 Difference]: With dead ends: 406037 [2018-07-24 14:13:47,472 INFO L226 Difference]: Without dead ends: 242379 [2018-07-24 14:13:47,731 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1841 GetRequests, 1783 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=709, Invalid=2153, Unknown=0, NotChecked=0, Total=2862 [2018-07-24 14:13:47,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242379 states. [2018-07-24 14:13:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242379 to 239164. [2018-07-24 14:13:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239164 states. [2018-07-24 14:13:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239164 states to 239164 states and 284421 transitions. [2018-07-24 14:13:52,169 INFO L78 Accepts]: Start accepts. Automaton has 239164 states and 284421 transitions. Word has length 441 [2018-07-24 14:13:52,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:13:52,169 INFO L471 AbstractCegarLoop]: Abstraction has 239164 states and 284421 transitions. [2018-07-24 14:13:52,169 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-24 14:13:52,169 INFO L276 IsEmpty]: Start isEmpty. Operand 239164 states and 284421 transitions. [2018-07-24 14:13:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2018-07-24 14:13:52,205 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:13:52,206 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:52,206 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:13:52,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1886292238, now seen corresponding path program 1 times [2018-07-24 14:13:52,206 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:13:52,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:13:52,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:52,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:13:52,207 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:13:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 14 proven. 85 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2018-07-24 14:13:52,679 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:13:52,679 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:13:52,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:52,690 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:13:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:52,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:13:54,778 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 14 proven. 85 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2018-07-24 14:13:54,778 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:13:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2018-07-24 14:13:55,290 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:13:55,291 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-07-24 14:13:55,291 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:13:55,292 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:13:55,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:13:55,292 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-07-24 14:13:55,293 INFO L87 Difference]: Start difference. First operand 239164 states and 284421 transitions. Second operand 3 states. [2018-07-24 14:14:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:14:06,244 INFO L93 Difference]: Finished difference Result 496611 states and 597712 transitions. [2018-07-24 14:14:06,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:14:06,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 488 [2018-07-24 14:14:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:14:07,978 INFO L225 Difference]: With dead ends: 496611 [2018-07-24 14:14:07,979 INFO L226 Difference]: Without dead ends: 258221 [2018-07-24 14:14:08,379 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 977 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-07-24 14:14:08,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258221 states. [2018-07-24 14:14:11,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258221 to 252880. [2018-07-24 14:14:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252880 states. [2018-07-24 14:14:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252880 states to 252880 states and 298910 transitions. [2018-07-24 14:14:12,396 INFO L78 Accepts]: Start accepts. Automaton has 252880 states and 298910 transitions. Word has length 488 [2018-07-24 14:14:12,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:14:12,397 INFO L471 AbstractCegarLoop]: Abstraction has 252880 states and 298910 transitions. [2018-07-24 14:14:12,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:14:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 252880 states and 298910 transitions. [2018-07-24 14:14:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1021 [2018-07-24 14:14:12,661 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:14:12,662 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:12,663 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:14:12,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1454910838, now seen corresponding path program 1 times [2018-07-24 14:14:12,663 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:14:12,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:12,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:12,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:12,665 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:14:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 14:14:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 467 proven. 202 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:14:16,449 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:14:16,449 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:14:16,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:16,457 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:14:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:14:16,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:14:16,880 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 14:14:17,082 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:14:17,082 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:14:17,088 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:14:17,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:14:17 BoogieIcfgContainer [2018-07-24 14:14:17,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:14:17,090 INFO L168 Benchmark]: Toolchain (without parser) took 223146.51 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -625.9 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-24 14:14:17,091 INFO L168 Benchmark]: CDTParser took 0.24 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 14:14:17,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2466.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:17,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 268.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:17,098 INFO L168 Benchmark]: Boogie Preprocessor took 964.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 918.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:17,099 INFO L168 Benchmark]: RCFGBuilder took 9874.92 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 167.8 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -167.2 MB). Peak memory consumption was 739.4 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:17,105 INFO L168 Benchmark]: TraceAbstraction took 209562.43 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.5 GB in the beginning and 2.0 GB in the end (delta: 427.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-24 14:14:17,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 2466.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 268.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 964.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 918.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9874.92 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 167.8 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -167.2 MB). Peak memory consumption was 739.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209562.43 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.5 GB in the beginning and 2.0 GB in the end (delta: 427.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while BasicCegarLoop was analyzing trace of length 1021 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 209.4s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 161.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5851 SDtfs, 39756 SDslu, 2377 SDs, 0 SdLazy, 72316 SolverSat, 15073 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 121.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5024 GetRequests, 4883 SyntacticMatches, 22 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 907 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252880occurred in iteration=12, 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: 21.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 11524 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 5405 NumberOfCodeBlocks, 5405 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 7806 ConstructedInterpolants, 2 QuantifiedInterpolants, 16393421 SizeOfPredicates, 24 NumberOfNonLiveVariables, 3852 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 24 InterpolantComputations, 12 PerfectInterpolantSequences, 3849/5483 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/Problem12_label27_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-14-17-142.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label27_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-14-17-142.csv Completed graceful shutdown