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/Problem13_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:23:37,201 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:23:37,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:23:37,215 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:23:37,215 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:23:37,216 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:23:37,218 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:23:37,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:23:37,222 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:23:37,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:23:37,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:23:37,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:23:37,225 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:23:37,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:23:37,227 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:23:37,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:23:37,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:23:37,231 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:23:37,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:23:37,234 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:23:37,235 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:23:37,236 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:23:37,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:23:37,239 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:23:37,239 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:23:37,240 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:23:37,241 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:23:37,242 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:23:37,243 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:23:37,244 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:23:37,244 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:23:37,245 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:23:37,245 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:23:37,245 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:23:37,246 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:23:37,247 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:23:37,247 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:23:37,264 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:23:37,265 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:23:37,266 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:23:37,266 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:23:37,266 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:23:37,266 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:23:37,267 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:23:37,267 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:23:37,267 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:23:37,267 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:23:37,267 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:23:37,268 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:23:37,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:23:37,269 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:23:37,269 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:23:37,269 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:23:37,270 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:23:37,270 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:23:37,271 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:23:37,271 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:23:37,272 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:23:37,272 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:23:37,272 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:23:37,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:23:37,272 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:23:37,272 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:23:37,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:23:37,273 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:23:37,273 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:23:37,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:23:37,274 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:23:37,274 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:23:37,274 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:23:37,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:23:37,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:23:37,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:23:37,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:23:37,347 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:23:37,348 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-07-24 14:23:37,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de5d8fb6/b97f2c428e8e47f7971a3a1cb4f47662/FLAGf0fd03ecf [2018-07-24 14:23:38,230 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:23:38,231 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-07-24 14:23:38,269 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de5d8fb6/b97f2c428e8e47f7971a3a1cb4f47662/FLAGf0fd03ecf [2018-07-24 14:23:38,291 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de5d8fb6/b97f2c428e8e47f7971a3a1cb4f47662 [2018-07-24 14:23:38,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:23:38,307 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:23:38,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:23:38,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:23:38,320 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:23:38,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:23:38" (1/1) ... [2018-07-24 14:23:38,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c0516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:38, skipping insertion in model container [2018-07-24 14:23:38,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:23:38" (1/1) ... [2018-07-24 14:23:38,734 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:23:39,914 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:23:39,930 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:23:40,858 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:23:41,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41 WrapperNode [2018-07-24 14:23:41,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:23:41,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:23:41,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:23:41,181 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:23:41,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:41,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:41,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:23:41,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:23:41,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:23:41,516 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:23:42,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:42,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:42,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:42,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:42,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:42,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:42,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... [2018-07-24 14:23:42,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:23:42,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:23:42,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:23:42,740 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:23:42,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:23:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:23:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:23:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:23:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:23:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:23:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:23:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:23:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:23:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:23:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:23:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:23:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:23:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:23:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:23:55,985 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:23:55,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:23:55 BoogieIcfgContainer [2018-07-24 14:23:55,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:23:55,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:23:55,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:23:55,990 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:23:55,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:23:38" (1/3) ... [2018-07-24 14:23:55,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9d6fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:23:55, skipping insertion in model container [2018-07-24 14:23:55,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:23:41" (2/3) ... [2018-07-24 14:23:55,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9d6fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:23:55, skipping insertion in model container [2018-07-24 14:23:55,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:23:55" (3/3) ... [2018-07-24 14:23:55,994 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label56_true-unreach-call.c [2018-07-24 14:23:56,003 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:23:56,013 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:23:56,083 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:23:56,084 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:23:56,084 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:23:56,085 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:23:56,085 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:23:56,085 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:23:56,085 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:23:56,085 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:23:56,085 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:23:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 14:23:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-24 14:23:56,148 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:23:56,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:23:56,150 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:23:56,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2146048668, now seen corresponding path program 1 times [2018-07-24 14:23:56,159 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:23:56,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:23:56,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:23:56,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:23:56,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:23:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:23:56,679 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:23:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:23:56,793 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:23:56,794 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:23:56,794 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:23:56,800 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:23:56,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:23:56,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:23:56,820 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-24 14:24:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:24:08,592 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-07-24 14:24:08,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:24:08,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2018-07-24 14:24:08,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:24:08,630 INFO L225 Difference]: With dead ends: 3087 [2018-07-24 14:24:08,631 INFO L226 Difference]: Without dead ends: 1965 [2018-07-24 14:24:08,643 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:24:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-07-24 14:24:08,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-07-24 14:24:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-07-24 14:24:08,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-07-24 14:24:08,801 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 60 [2018-07-24 14:24:08,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:24:08,803 INFO L471 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-07-24 14:24:08,803 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:24:08,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-07-24 14:24:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-24 14:24:08,816 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:24:08,818 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:24:08,818 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:24:08,819 INFO L82 PathProgramCache]: Analyzing trace with hash 2082403116, now seen corresponding path program 1 times [2018-07-24 14:24:08,819 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:24:08,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:24:08,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:24:08,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:24:08,821 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:24:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:24:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:24:09,078 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:24:09,078 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:24:09,078 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:24:09,080 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:24:09,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:24:09,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:24:09,081 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 5 states. [2018-07-24 14:24:37,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:24:37,023 INFO L93 Difference]: Finished difference Result 7493 states and 13755 transitions. [2018-07-24 14:24:37,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:24:37,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-07-24 14:24:37,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:24:37,060 INFO L225 Difference]: With dead ends: 7493 [2018-07-24 14:24:37,060 INFO L226 Difference]: Without dead ends: 5540 [2018-07-24 14:24:37,072 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:24:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2018-07-24 14:24:37,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5410. [2018-07-24 14:24:37,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5410 states. [2018-07-24 14:24:37,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 8850 transitions. [2018-07-24 14:24:37,248 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 8850 transitions. Word has length 137 [2018-07-24 14:24:37,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:24:37,248 INFO L471 AbstractCegarLoop]: Abstraction has 5410 states and 8850 transitions. [2018-07-24 14:24:37,249 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:24:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 8850 transitions. [2018-07-24 14:24:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-24 14:24:37,260 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:24:37,263 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:24:37,263 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:24:37,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1768842238, now seen corresponding path program 1 times [2018-07-24 14:24:37,264 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:24:37,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:24:37,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:24:37,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:24:37,265 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:24:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:24:37,563 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:24:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:24:37,893 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:24:37,893 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:24:37,893 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:24:37,894 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:24:37,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:24:37,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:24:37,895 INFO L87 Difference]: Start difference. First operand 5410 states and 8850 transitions. Second operand 6 states. [2018-07-24 14:24:50,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:24:50,037 INFO L93 Difference]: Finished difference Result 14274 states and 24289 transitions. [2018-07-24 14:24:50,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:24:50,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-07-24 14:24:50,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:24:50,088 INFO L225 Difference]: With dead ends: 14274 [2018-07-24 14:24:50,088 INFO L226 Difference]: Without dead ends: 8870 [2018-07-24 14:24:50,110 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:24:50,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8870 states. [2018-07-24 14:24:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8870 to 8783. [2018-07-24 14:24:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8783 states. [2018-07-24 14:24:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8783 states to 8783 states and 13393 transitions. [2018-07-24 14:24:50,352 INFO L78 Accepts]: Start accepts. Automaton has 8783 states and 13393 transitions. Word has length 151 [2018-07-24 14:24:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:24:50,353 INFO L471 AbstractCegarLoop]: Abstraction has 8783 states and 13393 transitions. [2018-07-24 14:24:50,353 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:24:50,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8783 states and 13393 transitions. [2018-07-24 14:24:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-24 14:24:50,359 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:24:50,359 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:24:50,359 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:24:50,360 INFO L82 PathProgramCache]: Analyzing trace with hash 463045540, now seen corresponding path program 1 times [2018-07-24 14:24:50,360 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:24:50,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:24:50,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:24:50,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:24:50,361 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:24:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:24:50,993 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:24:50,993 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:24:50,994 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:24:50,994 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:24:50,994 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:24:50,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:24:50,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:24:50,997 INFO L87 Difference]: Start difference. First operand 8783 states and 13393 transitions. Second operand 6 states. [2018-07-24 14:25:06,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:25:06,740 INFO L93 Difference]: Finished difference Result 29382 states and 47118 transitions. [2018-07-24 14:25:06,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:25:06,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-07-24 14:25:06,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:25:06,833 INFO L225 Difference]: With dead ends: 29382 [2018-07-24 14:25:06,834 INFO L226 Difference]: Without dead ends: 20605 [2018-07-24 14:25:06,890 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:25:06,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20605 states. [2018-07-24 14:25:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20605 to 20492. [2018-07-24 14:25:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20492 states. [2018-07-24 14:25:07,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20492 states to 20492 states and 29420 transitions. [2018-07-24 14:25:07,404 INFO L78 Accepts]: Start accepts. Automaton has 20492 states and 29420 transitions. Word has length 156 [2018-07-24 14:25:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:25:07,404 INFO L471 AbstractCegarLoop]: Abstraction has 20492 states and 29420 transitions. [2018-07-24 14:25:07,404 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:25:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 20492 states and 29420 transitions. [2018-07-24 14:25:07,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-24 14:25:07,411 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:25:07,411 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:25:07,411 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:25:07,412 INFO L82 PathProgramCache]: Analyzing trace with hash -235832308, now seen corresponding path program 1 times [2018-07-24 14:25:07,412 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:25:07,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:25:07,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:25:07,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:25:07,413 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:25:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:25:07,740 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:25:07,740 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:25:07,740 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:25:07,741 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:25:07,741 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:25:07,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:25:07,742 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:25:07,742 INFO L87 Difference]: Start difference. First operand 20492 states and 29420 transitions. Second operand 5 states. [2018-07-24 14:25:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:25:33,938 INFO L93 Difference]: Finished difference Result 54254 states and 81617 transitions. [2018-07-24 14:25:33,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:25:33,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2018-07-24 14:25:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:25:34,082 INFO L225 Difference]: With dead ends: 54254 [2018-07-24 14:25:34,083 INFO L226 Difference]: Without dead ends: 33768 [2018-07-24 14:25:34,135 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:25:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33768 states. [2018-07-24 14:25:34,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33768 to 33623. [2018-07-24 14:25:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33623 states. [2018-07-24 14:25:34,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33623 states to 33623 states and 50304 transitions. [2018-07-24 14:25:34,873 INFO L78 Accepts]: Start accepts. Automaton has 33623 states and 50304 transitions. Word has length 168 [2018-07-24 14:25:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:25:34,874 INFO L471 AbstractCegarLoop]: Abstraction has 33623 states and 50304 transitions. [2018-07-24 14:25:34,874 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:25:34,874 INFO L276 IsEmpty]: Start isEmpty. Operand 33623 states and 50304 transitions. [2018-07-24 14:25:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-07-24 14:25:34,893 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:25:34,894 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:25:34,894 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:25:34,894 INFO L82 PathProgramCache]: Analyzing trace with hash 523981396, now seen corresponding path program 1 times [2018-07-24 14:25:34,894 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:25:34,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:25:34,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:25:34,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:25:34,896 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:25:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:25:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:25:35,258 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:25:35,258 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:25:35,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:25:35,276 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:25:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:25:35,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:25:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-07-24 14:25:35,609 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:25:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:25:36,877 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:25:36,878 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 14:25:36,878 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:25:36,878 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:25:36,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:25:36,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:25:36,879 INFO L87 Difference]: Start difference. First operand 33623 states and 50304 transitions. Second operand 5 states. [2018-07-24 14:25:54,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:25:54,614 INFO L93 Difference]: Finished difference Result 94517 states and 159863 transitions. [2018-07-24 14:25:54,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:25:54,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2018-07-24 14:25:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:25:55,003 INFO L225 Difference]: With dead ends: 94517 [2018-07-24 14:25:55,003 INFO L226 Difference]: Without dead ends: 61708 [2018-07-24 14:25:55,257 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:25:55,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61708 states. [2018-07-24 14:25:57,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61708 to 61319. [2018-07-24 14:25:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61319 states. [2018-07-24 14:25:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61319 states to 61319 states and 92540 transitions. [2018-07-24 14:25:57,738 INFO L78 Accepts]: Start accepts. Automaton has 61319 states and 92540 transitions. Word has length 232 [2018-07-24 14:25:57,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:25:57,739 INFO L471 AbstractCegarLoop]: Abstraction has 61319 states and 92540 transitions. [2018-07-24 14:25:57,739 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:25:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 61319 states and 92540 transitions. [2018-07-24 14:25:57,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-07-24 14:25:57,777 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:25:57,777 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:25:57,778 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:25:57,778 INFO L82 PathProgramCache]: Analyzing trace with hash 16958700, now seen corresponding path program 1 times [2018-07-24 14:25:57,778 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:25:57,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:25:57,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:25:57,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:25:57,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:25:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:25:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:25:58,442 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:25:58,443 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:25:58,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:25:58,460 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:25:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:25:58,606 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:25:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-07-24 14:25:59,508 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:26:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 111 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:26:00,273 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:26:00,273 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 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:26:00,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:26:00,289 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:26:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:26:00,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:26:00,675 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:26:00,675 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:26:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:26:01,067 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:26:01,067 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 5, 5] total 21 [2018-07-24 14:26:01,067 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:26:01,068 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 14:26:01,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 14:26:01,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2018-07-24 14:26:01,069 INFO L87 Difference]: Start difference. First operand 61319 states and 92540 transitions. Second operand 11 states. [2018-07-24 14:26:53,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:26:53,912 INFO L93 Difference]: Finished difference Result 219128 states and 430548 transitions. [2018-07-24 14:26:53,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-07-24 14:26:53,916 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 284 [2018-07-24 14:26:53,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:26:55,086 INFO L225 Difference]: With dead ends: 219128 [2018-07-24 14:26:55,086 INFO L226 Difference]: Without dead ends: 158623 [2018-07-24 14:26:55,482 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 1164 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2284 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1223, Invalid=6259, Unknown=0, NotChecked=0, Total=7482 [2018-07-24 14:26:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158623 states. [2018-07-24 14:27:01,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158623 to 155135. [2018-07-24 14:27:01,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155135 states. [2018-07-24 14:27:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155135 states to 155135 states and 209986 transitions. [2018-07-24 14:27:02,371 INFO L78 Accepts]: Start accepts. Automaton has 155135 states and 209986 transitions. Word has length 284 [2018-07-24 14:27:02,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:27:02,372 INFO L471 AbstractCegarLoop]: Abstraction has 155135 states and 209986 transitions. [2018-07-24 14:27:02,372 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 14:27:02,372 INFO L276 IsEmpty]: Start isEmpty. Operand 155135 states and 209986 transitions. [2018-07-24 14:27:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-07-24 14:27:02,422 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:27:02,422 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:27:02,422 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:27:02,423 INFO L82 PathProgramCache]: Analyzing trace with hash -695752470, now seen corresponding path program 1 times [2018-07-24 14:27:02,423 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:27:02,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:27:02,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:27:02,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:27:02,424 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:27:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:27:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:27:02,862 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:27:02,862 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:27:02,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:27:02,870 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:27:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:27:02,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:27:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:27:03,187 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:27:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:27:03,413 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:27:03,413 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:27:03,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:27:03,436 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:27:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:27:03,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:27:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:27:03,840 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:27:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:27:03,989 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:27:03,990 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-07-24 14:27:03,990 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:27:03,991 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:27:03,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:27:03,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-07-24 14:27:03,991 INFO L87 Difference]: Start difference. First operand 155135 states and 209986 transitions. Second operand 9 states. Received shutdown request... [2018-07-24 14:27:31,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-24 14:27:31,605 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:27:31,611 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:27:31,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:27:31 BoogieIcfgContainer [2018-07-24 14:27:31,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:27:31,613 INFO L168 Benchmark]: Toolchain (without parser) took 233307.18 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -214.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-07-24 14:27:31,614 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:27:31,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2869.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:27:31,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 334.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:27:31,616 INFO L168 Benchmark]: Boogie Preprocessor took 1223.95 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 996.7 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:27:31,617 INFO L168 Benchmark]: RCFGBuilder took 13246.66 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 153.6 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 89.6 MB). Peak memory consumption was 740.4 MB. Max. memory is 7.1 GB. [2018-07-24 14:27:31,618 INFO L168 Benchmark]: TraceAbstraction took 215624.59 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 985.1 MB). Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 634.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-24 14:27:31,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 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 2869.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 334.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1223.95 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 996.7 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13246.66 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 153.6 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 89.6 MB). Peak memory consumption was 740.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215624.59 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 985.1 MB). Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 634.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 171]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 171). Cancelled while BasicCegarLoop was constructing difference of abstraction (155135states) and interpolant automaton (currently 20 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (359407 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 215.5s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 194.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3701 SDtfs, 44146 SDslu, 6825 SDs, 0 SdLazy, 85716 SolverSat, 19268 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 161.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2945 GetRequests, 2789 SyntacticMatches, 8 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2464 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155135occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 4358 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 2855 NumberOfCodeBlocks, 2855 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4215 ConstructedInterpolants, 0 QuantifiedInterpolants, 3132177 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2479 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 2635/2898 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/Problem13_label56_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-27-31-638.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label56_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-27-31-638.csv Completed graceful shutdown