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/Problem15_label22_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:09:48,287 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:09:48,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:09:48,301 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:09:48,301 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:09:48,302 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:09:48,303 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:09:48,305 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:09:48,307 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:09:48,307 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:09:48,308 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:09:48,308 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:09:48,309 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:09:48,310 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:09:48,311 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:09:48,312 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:09:48,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:09:48,315 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:09:48,317 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:09:48,319 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:09:48,320 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:09:48,321 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:09:48,323 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:09:48,324 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:09:48,324 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:09:48,325 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:09:48,326 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:09:48,327 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:09:48,328 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:09:48,329 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:09:48,329 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:09:48,330 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:09:48,330 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:09:48,330 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:09:48,331 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:09:48,332 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:09:48,332 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 12:09:48,348 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:09:48,348 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:09:48,349 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:09:48,350 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:09:48,350 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:09:48,350 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:09:48,350 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:09:48,350 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:09:48,351 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:09:48,351 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:09:48,351 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:09:48,352 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:09:48,352 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:09:48,352 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:09:48,353 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:09:48,353 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:09:48,353 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:09:48,353 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:09:48,354 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:09:48,355 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:09:48,355 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:09:48,355 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:09:48,355 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:09:48,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:09:48,356 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:09:48,356 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:09:48,356 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:09:48,356 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:09:48,357 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:09:48,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:09:48,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:09:48,358 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:09:48,358 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:09:48,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:09:48,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:09:48,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:09:48,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:09:48,443 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:09:48,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label22_false-unreach-call.c [2018-07-24 12:09:48,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0809c1565/ea5cc2aa20014bfaa491e3dea2a50404/FLAGdb8957986 [2018-07-24 12:09:49,163 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:09:49,164 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label22_false-unreach-call.c [2018-07-24 12:09:49,190 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0809c1565/ea5cc2aa20014bfaa491e3dea2a50404/FLAGdb8957986 [2018-07-24 12:09:49,206 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0809c1565/ea5cc2aa20014bfaa491e3dea2a50404 [2018-07-24 12:09:49,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:09:49,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:09:49,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:09:49,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:09:49,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:09:49,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:09:49" (1/1) ... [2018-07-24 12:09:49,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380c2cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:49, skipping insertion in model container [2018-07-24 12:09:49,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:09:49" (1/1) ... [2018-07-24 12:09:49,488 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:09:50,095 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:09:50,114 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:09:50,744 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:09:50,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50 WrapperNode [2018-07-24 12:09:50,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:09:50,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:09:50,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:09:50,900 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:09:50,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:50,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:09:51,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:09:51,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:09:51,179 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:09:51,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... [2018-07-24 12:09:51,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:09:51,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:09:51,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:09:51,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:09:51,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:09:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:09:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:09:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:09:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:09:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:09:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:09:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:09:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:09:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:09:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:09:59,741 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:09:59,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:09:59 BoogieIcfgContainer [2018-07-24 12:09:59,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:09:59,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:09:59,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:09:59,747 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:09:59,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:09:49" (1/3) ... [2018-07-24 12:09:59,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95121a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:09:59, skipping insertion in model container [2018-07-24 12:09:59,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:50" (2/3) ... [2018-07-24 12:09:59,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95121a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:09:59, skipping insertion in model container [2018-07-24 12:09:59,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:09:59" (3/3) ... [2018-07-24 12:09:59,751 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label22_false-unreach-call.c [2018-07-24 12:09:59,761 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:09:59,769 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:09:59,824 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:09:59,825 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:09:59,825 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:09:59,825 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:09:59,825 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:09:59,826 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:09:59,826 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:09:59,826 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:09:59,826 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:09:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-24 12:09:59,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-24 12:09:59,866 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:09:59,867 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] [2018-07-24 12:09:59,867 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:09:59,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1118980231, now seen corresponding path program 1 times [2018-07-24 12:09:59,876 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:09:59,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:59,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:59,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:59,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:00,343 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:00,343 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:10:00,343 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:00,349 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:10:00,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:10:00,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:10:00,369 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-07-24 12:10:11,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:11,346 INFO L93 Difference]: Finished difference Result 1510 states and 2773 transitions. [2018-07-24 12:10:11,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:10:11,348 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-07-24 12:10:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:11,373 INFO L225 Difference]: With dead ends: 1510 [2018-07-24 12:10:11,373 INFO L226 Difference]: Without dead ends: 1066 [2018-07-24 12:10:11,383 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 12:10:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-07-24 12:10:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1064. [2018-07-24 12:10:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2018-07-24 12:10:11,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1590 transitions. [2018-07-24 12:10:11,525 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1590 transitions. Word has length 25 [2018-07-24 12:10:11,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:11,526 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1590 transitions. [2018-07-24 12:10:11,526 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:10:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1590 transitions. [2018-07-24 12:10:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-24 12:10:11,536 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:11,536 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:11,536 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:11,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1349939091, now seen corresponding path program 1 times [2018-07-24 12:10:11,537 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:11,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:11,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:11,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:11,540 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:12,013 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:12,014 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 12:10:12,014 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:12,016 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:10:12,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:10:12,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 12:10:12,017 INFO L87 Difference]: Start difference. First operand 1064 states and 1590 transitions. Second operand 5 states. [2018-07-24 12:10:12,866 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 12:10:27,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:27,916 INFO L93 Difference]: Finished difference Result 3340 states and 4979 transitions. [2018-07-24 12:10:27,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:10:27,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2018-07-24 12:10:27,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:27,936 INFO L225 Difference]: With dead ends: 3340 [2018-07-24 12:10:27,936 INFO L226 Difference]: Without dead ends: 2282 [2018-07-24 12:10:27,943 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:10:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2018-07-24 12:10:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2267. [2018-07-24 12:10:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2267 states. [2018-07-24 12:10:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3306 transitions. [2018-07-24 12:10:28,042 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3306 transitions. Word has length 95 [2018-07-24 12:10:28,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:28,043 INFO L471 AbstractCegarLoop]: Abstraction has 2267 states and 3306 transitions. [2018-07-24 12:10:28,044 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:10:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3306 transitions. [2018-07-24 12:10:28,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-24 12:10:28,050 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:28,050 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:10:28,051 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:28,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1657394096, now seen corresponding path program 1 times [2018-07-24 12:10:28,051 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:28,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:28,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:28,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:28,054 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:28,296 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:28,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:10:28,296 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:28,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:10:28,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:10:28,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:10:28,298 INFO L87 Difference]: Start difference. First operand 2267 states and 3306 transitions. Second operand 6 states. [2018-07-24 12:10:36,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:36,988 INFO L93 Difference]: Finished difference Result 6382 states and 9947 transitions. [2018-07-24 12:10:36,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:10:36,993 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-07-24 12:10:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:37,027 INFO L225 Difference]: With dead ends: 6382 [2018-07-24 12:10:37,027 INFO L226 Difference]: Without dead ends: 4430 [2018-07-24 12:10:37,042 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:10:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4430 states. [2018-07-24 12:10:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4430 to 4375. [2018-07-24 12:10:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2018-07-24 12:10:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5978 transitions. [2018-07-24 12:10:37,177 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5978 transitions. Word has length 100 [2018-07-24 12:10:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:37,177 INFO L471 AbstractCegarLoop]: Abstraction has 4375 states and 5978 transitions. [2018-07-24 12:10:37,178 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:10:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5978 transitions. [2018-07-24 12:10:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-24 12:10:37,180 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:37,180 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:10:37,180 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:37,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2013571420, now seen corresponding path program 1 times [2018-07-24 12:10:37,181 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:37,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:37,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:37,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:37,182 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:37,367 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:37,367 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:10:37,367 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:37,368 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:10:37,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:10:37,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:10:37,369 INFO L87 Difference]: Start difference. First operand 4375 states and 5978 transitions. Second operand 4 states. [2018-07-24 12:10:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:42,500 INFO L93 Difference]: Finished difference Result 11455 states and 16381 transitions. [2018-07-24 12:10:42,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:10:42,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2018-07-24 12:10:42,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:42,541 INFO L225 Difference]: With dead ends: 11455 [2018-07-24 12:10:42,541 INFO L226 Difference]: Without dead ends: 7395 [2018-07-24 12:10:42,566 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 12:10:42,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7395 states. [2018-07-24 12:10:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7395 to 7389. [2018-07-24 12:10:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7389 states. [2018-07-24 12:10:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7389 states to 7389 states and 9827 transitions. [2018-07-24 12:10:42,749 INFO L78 Accepts]: Start accepts. Automaton has 7389 states and 9827 transitions. Word has length 106 [2018-07-24 12:10:42,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:42,749 INFO L471 AbstractCegarLoop]: Abstraction has 7389 states and 9827 transitions. [2018-07-24 12:10:42,749 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:10:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7389 states and 9827 transitions. [2018-07-24 12:10:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-24 12:10:42,753 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:42,753 INFO L353 BasicCegarLoop]: trace histogram [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 12:10:42,753 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:42,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1376830673, now seen corresponding path program 1 times [2018-07-24 12:10:42,753 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:42,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:42,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:42,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:42,755 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:43,295 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:43,295 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:43,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:43,319 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:43,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:43,648 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:44,171 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:10:44,171 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-07-24 12:10:44,171 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:44,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:10:44,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:10:44,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:10:44,173 INFO L87 Difference]: Start difference. First operand 7389 states and 9827 transitions. Second operand 6 states. [2018-07-24 12:10:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:55,663 INFO L93 Difference]: Finished difference Result 25882 states and 36184 transitions. [2018-07-24 12:10:55,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:10:55,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-07-24 12:10:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:55,787 INFO L225 Difference]: With dead ends: 25882 [2018-07-24 12:10:55,788 INFO L226 Difference]: Without dead ends: 18808 [2018-07-24 12:10:55,850 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:10:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18808 states. [2018-07-24 12:10:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18808 to 18750. [2018-07-24 12:10:56,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18750 states. [2018-07-24 12:10:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18750 states to 18750 states and 25845 transitions. [2018-07-24 12:10:56,304 INFO L78 Accepts]: Start accepts. Automaton has 18750 states and 25845 transitions. Word has length 121 [2018-07-24 12:10:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:56,305 INFO L471 AbstractCegarLoop]: Abstraction has 18750 states and 25845 transitions. [2018-07-24 12:10:56,305 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:10:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 18750 states and 25845 transitions. [2018-07-24 12:10:56,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-07-24 12:10:56,316 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:56,317 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:56,317 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:56,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1487092138, now seen corresponding path program 1 times [2018-07-24 12:10:56,322 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:56,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:56,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:56,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:56,323 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 37 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 12:10:56,980 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:56,980 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:56,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:56,993 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:57,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:57,263 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 12:10:57,264 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:57,779 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 12:10:57,808 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:10:57,808 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-07-24 12:10:57,809 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:57,809 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:10:57,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:10:57,810 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:10:57,810 INFO L87 Difference]: Start difference. First operand 18750 states and 25845 transitions. Second operand 5 states. [2018-07-24 12:11:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:02,996 INFO L93 Difference]: Finished difference Result 43153 states and 62397 transitions. [2018-07-24 12:11:02,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:11:02,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-07-24 12:11:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:03,121 INFO L225 Difference]: With dead ends: 43153 [2018-07-24 12:11:03,121 INFO L226 Difference]: Without dead ends: 24717 [2018-07-24 12:11:03,190 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 386 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:11:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24717 states. [2018-07-24 12:11:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24717 to 23912. [2018-07-24 12:11:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23912 states. [2018-07-24 12:11:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23912 states to 23912 states and 31054 transitions. [2018-07-24 12:11:04,120 INFO L78 Accepts]: Start accepts. Automaton has 23912 states and 31054 transitions. Word has length 194 [2018-07-24 12:11:04,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:04,121 INFO L471 AbstractCegarLoop]: Abstraction has 23912 states and 31054 transitions. [2018-07-24 12:11:04,121 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:11:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 23912 states and 31054 transitions. [2018-07-24 12:11:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-07-24 12:11:04,169 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:04,169 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:11:04,169 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:04,170 INFO L82 PathProgramCache]: Analyzing trace with hash -192965709, now seen corresponding path program 1 times [2018-07-24 12:11:04,170 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:04,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:04,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:04,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:04,171 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:04,719 WARN L169 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-07-24 12:11:05,066 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 12:11:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 54 proven. 134 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 12:11:05,332 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:05,332 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:05,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:05,350 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:05,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-07-24 12:11:05,829 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:06,163 WARN L169 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-24 12:11:06,733 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2018-07-24 12:11:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 54 proven. 134 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 12:11:07,083 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:11:07,084 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 12:11:07,084 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:11:07,084 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:11:07,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:11:07,085 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:11:07,085 INFO L87 Difference]: Start difference. First operand 23912 states and 31054 transitions. Second operand 5 states. [2018-07-24 12:11:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:15,683 INFO L93 Difference]: Finished difference Result 50325 states and 66120 transitions. [2018-07-24 12:11:15,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:11:15,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 250 [2018-07-24 12:11:15,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:15,802 INFO L225 Difference]: With dead ends: 50325 [2018-07-24 12:11:15,802 INFO L226 Difference]: Without dead ends: 26727 [2018-07-24 12:11:15,894 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 495 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:11:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26727 states. [2018-07-24 12:11:16,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26727 to 26644. [2018-07-24 12:11:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26644 states. [2018-07-24 12:11:16,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26644 states to 26644 states and 34461 transitions. [2018-07-24 12:11:16,478 INFO L78 Accepts]: Start accepts. Automaton has 26644 states and 34461 transitions. Word has length 250 [2018-07-24 12:11:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:16,479 INFO L471 AbstractCegarLoop]: Abstraction has 26644 states and 34461 transitions. [2018-07-24 12:11:16,479 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:11:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 26644 states and 34461 transitions. [2018-07-24 12:11:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-07-24 12:11:16,525 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:16,525 INFO L353 BasicCegarLoop]: trace histogram [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, 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 12:11:16,526 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:16,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1730389901, now seen corresponding path program 1 times [2018-07-24 12:11:16,526 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:16,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:16,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:16,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:16,528 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:16,813 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:11:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 60 proven. 249 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-07-24 12:11:17,317 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:17,317 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 12:11:17,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:17,335 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:17,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 222 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-07-24 12:11:17,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 64 proven. 253 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:18,122 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:18,122 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 12:11:18,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:18,139 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:18,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-07-24 12:11:18,832 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 62 proven. 172 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-07-24 12:11:19,065 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:11:19,065 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 5, 5] total 17 [2018-07-24 12:11:19,065 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:11:19,066 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:11:19,066 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:11:19,067 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-07-24 12:11:19,067 INFO L87 Difference]: Start difference. First operand 26644 states and 34461 transitions. Second operand 11 states. [2018-07-24 12:11:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:42,256 INFO L93 Difference]: Finished difference Result 74174 states and 103279 transitions. [2018-07-24 12:11:42,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-24 12:11:42,257 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 331 [2018-07-24 12:11:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:42,528 INFO L225 Difference]: With dead ends: 74174 [2018-07-24 12:11:42,529 INFO L226 Difference]: Without dead ends: 47844 [2018-07-24 12:11:42,796 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1348 SyntacticMatches, 9 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=726, Invalid=2580, Unknown=0, NotChecked=0, Total=3306 [2018-07-24 12:11:42,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47844 states. [2018-07-24 12:11:44,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47844 to 46679. [2018-07-24 12:11:44,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46679 states. [2018-07-24 12:11:44,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46679 states to 46679 states and 58410 transitions. [2018-07-24 12:11:44,201 INFO L78 Accepts]: Start accepts. Automaton has 46679 states and 58410 transitions. Word has length 331 [2018-07-24 12:11:44,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:44,202 INFO L471 AbstractCegarLoop]: Abstraction has 46679 states and 58410 transitions. [2018-07-24 12:11:44,202 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 12:11:44,202 INFO L276 IsEmpty]: Start isEmpty. Operand 46679 states and 58410 transitions. [2018-07-24 12:11:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-07-24 12:11:44,254 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:44,255 INFO L353 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:11:44,255 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:44,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1786196487, now seen corresponding path program 1 times [2018-07-24 12:11:44,256 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:44,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:44,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:44,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:44,257 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:44,537 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:11:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 83 proven. 339 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-24 12:11:44,631 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:44,631 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 12:11:44,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:44,639 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:44,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 405 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-07-24 12:11:44,910 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:45,087 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 165 proven. 140 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-07-24 12:11:45,108 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:45,108 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:11:45,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:45,128 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:45,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 323 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-07-24 12:11:45,517 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 85 proven. 268 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2018-07-24 12:11:45,702 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:11:45,703 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 12:11:45,703 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:11:45,704 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:11:45,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:11:45,705 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:11:45,705 INFO L87 Difference]: Start difference. First operand 46679 states and 58410 transitions. Second operand 9 states. [2018-07-24 12:11:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:53,727 INFO L93 Difference]: Finished difference Result 92494 states and 116373 transitions. [2018-07-24 12:11:53,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-24 12:11:53,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 352 [2018-07-24 12:11:53,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:53,855 INFO L225 Difference]: With dead ends: 92494 [2018-07-24 12:11:53,855 INFO L226 Difference]: Without dead ends: 46129 [2018-07-24 12:11:54,005 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1439 GetRequests, 1408 SyntacticMatches, 9 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2018-07-24 12:11:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46129 states. [2018-07-24 12:11:54,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46129 to 44502. [2018-07-24 12:11:54,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44502 states. [2018-07-24 12:11:54,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44502 states to 44502 states and 52007 transitions. [2018-07-24 12:11:54,681 INFO L78 Accepts]: Start accepts. Automaton has 44502 states and 52007 transitions. Word has length 352 [2018-07-24 12:11:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:54,682 INFO L471 AbstractCegarLoop]: Abstraction has 44502 states and 52007 transitions. [2018-07-24 12:11:54,682 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:11:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 44502 states and 52007 transitions. [2018-07-24 12:11:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-07-24 12:11:54,726 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:54,727 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 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] [2018-07-24 12:11:54,727 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:54,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1582415800, now seen corresponding path program 1 times [2018-07-24 12:11:54,728 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:54,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:54,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:54,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:54,729 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 66 proven. 300 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:56,958 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:56,958 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:56,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:56,970 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:57,146 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:57,872 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-24 12:11:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 311 proven. 41 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 12:11:58,593 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 64 proven. 302 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:59,702 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:59,702 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:11:59,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:59,719 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:00,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 261 proven. 41 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 12:12:00,811 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 64 proven. 302 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:12:01,754 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:12:01,755 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 23 [2018-07-24 12:12:01,755 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:12:01,756 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-24 12:12:01,756 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-24 12:12:01,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2018-07-24 12:12:01,757 INFO L87 Difference]: Start difference. First operand 44502 states and 52007 transitions. Second operand 13 states. [2018-07-24 12:12:26,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:12:26,147 INFO L93 Difference]: Finished difference Result 93268 states and 109277 transitions. [2018-07-24 12:12:26,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-24 12:12:26,147 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 500 [2018-07-24 12:12:26,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:12:26,309 INFO L225 Difference]: With dead ends: 93268 [2018-07-24 12:12:26,310 INFO L226 Difference]: Without dead ends: 48056 [2018-07-24 12:12:26,444 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2070 GetRequests, 2012 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=683, Invalid=2179, Unknown=0, NotChecked=0, Total=2862 [2018-07-24 12:12:26,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48056 states. [2018-07-24 12:12:27,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48056 to 47633. [2018-07-24 12:12:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47633 states. [2018-07-24 12:12:27,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47633 states to 47633 states and 55235 transitions. [2018-07-24 12:12:27,321 INFO L78 Accepts]: Start accepts. Automaton has 47633 states and 55235 transitions. Word has length 500 [2018-07-24 12:12:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:12:27,322 INFO L471 AbstractCegarLoop]: Abstraction has 47633 states and 55235 transitions. [2018-07-24 12:12:27,322 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-24 12:12:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 47633 states and 55235 transitions. [2018-07-24 12:12:27,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2018-07-24 12:12:27,342 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:12:27,343 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 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] [2018-07-24 12:12:27,343 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:12:27,344 INFO L82 PathProgramCache]: Analyzing trace with hash 329656446, now seen corresponding path program 1 times [2018-07-24 12:12:27,344 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:12:27,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:27,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:27,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:27,345 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:12:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 67 proven. 175 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-24 12:12:29,025 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:29,025 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:12:29,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:29,033 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:29,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 303 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 12:12:29,346 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:29,706 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 138 proven. 80 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-07-24 12:12:29,726 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:29,727 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:12:29,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:29,742 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:30,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 303 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 12:12:30,316 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 138 proven. 80 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-07-24 12:12:30,681 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:12:30,681 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 18 [2018-07-24 12:12:30,682 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:12:30,683 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:12:30,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:12:30,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-07-24 12:12:30,683 INFO L87 Difference]: Start difference. First operand 47633 states and 55235 transitions. Second operand 11 states. [2018-07-24 12:12:34,250 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-24 12:12:52,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:12:52,259 INFO L93 Difference]: Finished difference Result 153770 states and 182671 transitions. [2018-07-24 12:12:52,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-24 12:12:52,260 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 501 [2018-07-24 12:12:52,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:12:52,676 INFO L225 Difference]: With dead ends: 153770 [2018-07-24 12:12:52,676 INFO L226 Difference]: Without dead ends: 106471 [2018-07-24 12:12:52,846 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2074 GetRequests, 2013 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 976 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=721, Invalid=2819, Unknown=0, NotChecked=0, Total=3540 [2018-07-24 12:12:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106471 states. [2018-07-24 12:12:54,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106471 to 103593. [2018-07-24 12:12:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103593 states. [2018-07-24 12:12:55,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103593 states to 103593 states and 121769 transitions. [2018-07-24 12:12:55,300 INFO L78 Accepts]: Start accepts. Automaton has 103593 states and 121769 transitions. Word has length 501 [2018-07-24 12:12:55,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:12:55,301 INFO L471 AbstractCegarLoop]: Abstraction has 103593 states and 121769 transitions. [2018-07-24 12:12:55,301 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 12:12:55,301 INFO L276 IsEmpty]: Start isEmpty. Operand 103593 states and 121769 transitions. [2018-07-24 12:12:55,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2018-07-24 12:12:55,330 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:12:55,330 INFO L353 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:12:55,331 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:12:55,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1985399216, now seen corresponding path program 1 times [2018-07-24 12:12:55,331 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:12:55,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:55,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:55,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:55,332 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:12:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:56,076 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-24 12:12:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 267 proven. 21 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-07-24 12:12:56,465 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:56,465 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:12:56,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:56,477 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:56,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-07-24 12:13:52,657 WARN L177 SmtUtils]: Removed 9 from assertion stack [2018-07-24 12:13:52,658 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 12:13:52,859 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:13:52,859 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:13:52,864 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:13:52,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:13:52 BoogieIcfgContainer [2018-07-24 12:13:52,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:13:52,865 INFO L168 Benchmark]: Toolchain (without parser) took 243646.81 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -707.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-24 12:13:52,866 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 12:13:52,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1678.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:13:52,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 278.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:13:52,869 INFO L168 Benchmark]: Boogie Preprocessor took 623.87 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 880.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:13:52,869 INFO L168 Benchmark]: RCFGBuilder took 7939.55 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 337.8 MB). Peak memory consumption was 337.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:13:52,870 INFO L168 Benchmark]: TraceAbstraction took 233121.75 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-07-24 12:13:52,875 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 1678.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 278.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 623.87 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 880.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7939.55 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 337.8 MB). Peak memory consumption was 337.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233121.75 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 61). Cancelled while BasicCegarLoop was analyzing trace of length 560 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 440. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 233.0s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 145.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2472 SDtfs, 31921 SDslu, 4195 SDs, 0 SdLazy, 53042 SolverSat, 11122 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 121.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8180 GetRequests, 7914 SyntacticMatches, 34 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2856 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103593occurred in iteration=11, 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: 7.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 7117 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 16.3s InterpolantComputationTime, 6508 NumberOfCodeBlocks, 6508 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10408 ConstructedInterpolants, 0 QuantifiedInterpolants, 24694663 SizeOfPredicates, 30 NumberOfNonLiveVariables, 6302 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 33 InterpolantComputations, 7 PerfectInterpolantSequences, 5781/8899 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/Problem15_label22_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-13-52-887.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label22_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-13-52-887.csv Completed graceful shutdown