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/Problem17_label53_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:27:44,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:27:44,017 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:27:44,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:27:44,036 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:27:44,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:27:44,038 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:27:44,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:27:44,042 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:27:44,043 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:27:44,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:27:44,051 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:27:44,053 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:27:44,053 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:27:44,056 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:27:44,057 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:27:44,058 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:27:44,061 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:27:44,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:27:44,067 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:27:44,071 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:27:44,073 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:27:44,078 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:27:44,078 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:27:44,079 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:27:44,080 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:27:44,081 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:27:44,082 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:27:44,082 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:27:44,083 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:27:44,084 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:27:44,084 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:27:44,086 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:27:44,086 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:27:44,087 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:27:44,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:27:44,089 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 12:27:44,122 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:27:44,123 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:27:44,124 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:27:44,124 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:27:44,124 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:27:44,124 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:27:44,125 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:27:44,125 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:27:44,125 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:27:44,125 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:27:44,126 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:27:44,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:27:44,127 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:27:44,127 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:27:44,127 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:27:44,127 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:27:44,127 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:27:44,128 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:27:44,128 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:27:44,128 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:27:44,128 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:27:44,130 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:27:44,130 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:27:44,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:27:44,131 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:27:44,131 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:27:44,131 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:27:44,131 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:27:44,131 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:27:44,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:27:44,132 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:27:44,132 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:27:44,132 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:27:44,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:27:44,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:27:44,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:27:44,226 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:27:44,227 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:27:44,228 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label53_false-unreach-call.c [2018-07-24 12:27:44,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27a434b2c/9bdd3e7d0dcc439a8599806aa880a9c3/FLAGaa605038b [2018-07-24 12:27:44,963 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:27:44,964 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label53_false-unreach-call.c [2018-07-24 12:27:44,991 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27a434b2c/9bdd3e7d0dcc439a8599806aa880a9c3/FLAGaa605038b [2018-07-24 12:27:45,008 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27a434b2c/9bdd3e7d0dcc439a8599806aa880a9c3 [2018-07-24 12:27:45,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:27:45,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:27:45,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:27:45,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:27:45,030 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:27:45,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:27:45" (1/1) ... [2018-07-24 12:27:45,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47db165b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:45, skipping insertion in model container [2018-07-24 12:27:45,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:27:45" (1/1) ... [2018-07-24 12:27:45,356 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:27:46,104 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:27:46,123 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:27:46,794 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:27:47,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47 WrapperNode [2018-07-24 12:27:47,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:27:47,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:27:47,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:27:47,021 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:27:47,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:47,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:47,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:27:47,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:27:47,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:27:47,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:27:47,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:47,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:47,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:47,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:48,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:48,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:48,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (1/1) ... [2018-07-24 12:27:48,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:27:48,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:27:48,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:27:48,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:27:48,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (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 12:27:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:27:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:27:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:27:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:27:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:27:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:27:48,276 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 12:27:48,276 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 12:27:48,276 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 12:27:48,277 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 12:27:58,014 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:27:58,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:27:58 BoogieIcfgContainer [2018-07-24 12:27:58,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:27:58,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:27:58,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:27:58,020 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:27:58,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:27:45" (1/3) ... [2018-07-24 12:27:58,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a396f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:27:58, skipping insertion in model container [2018-07-24 12:27:58,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:47" (2/3) ... [2018-07-24 12:27:58,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a396f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:27:58, skipping insertion in model container [2018-07-24 12:27:58,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:27:58" (3/3) ... [2018-07-24 12:27:58,024 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label53_false-unreach-call.c [2018-07-24 12:27:58,034 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:27:58,044 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:27:58,106 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:27:58,107 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:27:58,107 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:27:58,107 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:27:58,107 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:27:58,107 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:27:58,107 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:27:58,108 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:27:58,108 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:27:58,142 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 12:27:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-24 12:27:58,149 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:27:58,150 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] [2018-07-24 12:27:58,151 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 12:27:58,157 INFO L82 PathProgramCache]: Analyzing trace with hash 792073478, now seen corresponding path program 1 times [2018-07-24 12:27:58,160 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:27:58,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:58,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:58,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:58,223 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:27:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:58,677 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 12:27:58,684 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:27:58,684 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:27:58,685 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:27:58,691 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:27:58,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:27:58,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:27:58,710 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 12:28:08,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:28:08,062 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-07-24 12:28:08,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:28:08,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-24 12:28:08,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:28:08,098 INFO L225 Difference]: With dead ends: 2166 [2018-07-24 12:28:08,098 INFO L226 Difference]: Without dead ends: 1556 [2018-07-24 12:28:08,111 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 12:28:08,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-07-24 12:28:08,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-07-24 12:28:08,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-07-24 12:28:08,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-07-24 12:28:08,236 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 21 [2018-07-24 12:28:08,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:28:08,237 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-07-24 12:28:08,237 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:28:08,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-07-24 12:28:08,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-24 12:28:08,242 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:28:08,243 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:28:08,243 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 12:28:08,243 INFO L82 PathProgramCache]: Analyzing trace with hash 910183647, now seen corresponding path program 1 times [2018-07-24 12:28:08,244 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:28:08,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:08,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:08,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:08,245 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:28:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:08,556 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:28:08,556 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:28:08,556 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:28:08,558 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:28:08,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:28:08,559 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:28:08,559 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-07-24 12:28:17,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:28:17,649 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-07-24 12:28:17,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:28:17,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2018-07-24 12:28:17,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:28:17,668 INFO L225 Difference]: With dead ends: 3059 [2018-07-24 12:28:17,669 INFO L226 Difference]: Without dead ends: 1997 [2018-07-24 12:28:17,673 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:28:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-07-24 12:28:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-07-24 12:28:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-07-24 12:28:17,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-07-24 12:28:17,758 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 97 [2018-07-24 12:28:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:28:17,759 INFO L471 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-07-24 12:28:17,759 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:28:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-07-24 12:28:17,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-24 12:28:17,767 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:28:17,767 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:28:17,767 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 12:28:17,767 INFO L82 PathProgramCache]: Analyzing trace with hash -910050713, now seen corresponding path program 1 times [2018-07-24 12:28:17,768 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:28:17,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:17,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:17,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:17,769 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:28:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:18,114 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:28:18,115 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:28:18,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:28:18,115 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:28:18,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:28:18,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:28:18,116 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-07-24 12:28:25,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:28:25,978 INFO L93 Difference]: Finished difference Result 5316 states and 8620 transitions. [2018-07-24 12:28:25,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:28:25,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-07-24 12:28:25,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:28:26,002 INFO L225 Difference]: With dead ends: 5316 [2018-07-24 12:28:26,002 INFO L226 Difference]: Without dead ends: 3347 [2018-07-24 12:28:26,011 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:28:26,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2018-07-24 12:28:26,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3316. [2018-07-24 12:28:26,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2018-07-24 12:28:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4711 transitions. [2018-07-24 12:28:26,100 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4711 transitions. Word has length 101 [2018-07-24 12:28:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:28:26,101 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 4711 transitions. [2018-07-24 12:28:26,101 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:28:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4711 transitions. [2018-07-24 12:28:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-24 12:28:26,104 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:28:26,104 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:28:26,104 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 12:28:26,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1031647254, now seen corresponding path program 1 times [2018-07-24 12:28:26,105 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:28:26,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:26,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:26,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:26,106 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:28:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:26,370 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:28:26,370 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:28:26,370 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:28:26,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:28:26,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:28:26,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:28:26,372 INFO L87 Difference]: Start difference. First operand 3316 states and 4711 transitions. Second operand 4 states. [2018-07-24 12:28:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:28:34,131 INFO L93 Difference]: Finished difference Result 6626 states and 9436 transitions. [2018-07-24 12:28:34,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:28:34,131 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2018-07-24 12:28:34,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:28:34,149 INFO L225 Difference]: With dead ends: 6626 [2018-07-24 12:28:34,150 INFO L226 Difference]: Without dead ends: 3316 [2018-07-24 12:28:34,163 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 12:28:34,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2018-07-24 12:28:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3316. [2018-07-24 12:28:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2018-07-24 12:28:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4325 transitions. [2018-07-24 12:28:34,254 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4325 transitions. Word has length 131 [2018-07-24 12:28:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:28:34,255 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 4325 transitions. [2018-07-24 12:28:34,255 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:28:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4325 transitions. [2018-07-24 12:28:34,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-07-24 12:28:34,259 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:28:34,259 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:28:34,259 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 12:28:34,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1504528560, now seen corresponding path program 1 times [2018-07-24 12:28:34,260 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:28:34,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:34,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:34,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:28:34,261 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:28:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 69 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 12:28:34,812 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:28:34,813 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 12:28:34,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:34,822 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:28:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:34,928 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:28:37,533 WARN L169 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-07-24 12:28:37,706 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 12:28:37,706 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:28:38,128 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-07-24 12:28:38,251 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-07-24 12:28:43,041 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2018-07-24 12:28:43,560 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:43,581 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:28:43,582 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:28:43,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:28:43,598 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:28:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:28:43,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:28:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 12:28:44,034 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:28:44,437 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-07-24 12:28:44,564 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-07-24 12:28:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:28:45,276 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:28:45,277 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 17 [2018-07-24 12:28:45,277 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:28:45,278 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:28:45,279 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:28:45,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-24 12:28:45,279 INFO L87 Difference]: Start difference. First operand 3316 states and 4325 transitions. Second operand 11 states. Received shutdown request... [2018-07-24 12:32:10,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 12:32:10,538 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:32:10,544 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:32:10,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:32:10 BoogieIcfgContainer [2018-07-24 12:32:10,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:32:10,545 INFO L168 Benchmark]: Toolchain (without parser) took 265525.19 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -753.1 MB). Peak memory consumption was 558.2 MB. Max. memory is 7.1 GB. [2018-07-24 12:32:10,547 INFO L168 Benchmark]: CDTParser took 0.21 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 12:32:10,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1997.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-24 12:32:10,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 290.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:32:10,549 INFO L168 Benchmark]: Boogie Preprocessor took 888.02 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 931.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-07-24 12:32:10,550 INFO L168 Benchmark]: RCFGBuilder took 9814.79 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 497.3 MB). Peak memory consumption was 497.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:32:10,551 INFO L168 Benchmark]: TraceAbstraction took 252529.09 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 379.6 MB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -308.1 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:32:10,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1997.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 290.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 888.02 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 931.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9814.79 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 497.3 MB). Peak memory consumption was 497.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252529.09 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 379.6 MB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -308.1 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 50). Cancelled while BasicCegarLoop was constructing difference of abstraction (3316states) and interpolant automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (12672 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 252.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 239.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1676 SDtfs, 10934 SDslu, 1673 SDs, 0 SdLazy, 18526 SolverSat, 4638 SolverUnsat, 83 SolverUnknown, 0 SolverNotchecked, 232.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 786 GetRequests, 739 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3316occurred in iteration=3, 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 541 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 905 NumberOfCodeBlocks, 905 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1266 ConstructedInterpolants, 186 QuantifiedInterpolants, 1699944 SizeOfPredicates, 4 NumberOfNonLiveVariables, 756 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 347/562 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/Problem17_label53_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-32-10-570.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label53_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-32-10-570.csv Completed graceful shutdown