java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 14:32:51,144 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 14:32:51,146 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 14:32:51,159 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 14:32:51,160 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 14:32:51,161 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 14:32:51,162 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 14:32:51,164 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 14:32:51,166 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 14:32:51,167 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 14:32:51,168 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 14:32:51,168 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 14:32:51,169 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 14:32:51,170 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 14:32:51,171 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 14:32:51,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 14:32:51,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 14:32:51,177 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 14:32:51,186 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 14:32:51,188 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 14:32:51,189 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 14:32:51,194 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 14:32:51,197 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-08-08 14:32:51,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 14:32:51,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 14:32:51,211 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 14:32:51,213 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 14:32:51,213 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-08-08 14:32:51,242 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 14:32:51,242 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 14:32:51,246 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 14:32:51,246 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 14:32:51,246 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 14:32:51,246 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 14:32:51,247 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 14:32:51,247 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 14:32:51,247 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 14:32:51,247 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 14:32:51,247 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 14:32:51,247 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 14:32:51,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 14:32:51,249 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 14:32:51,249 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 14:32:51,250 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 14:32:51,250 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 14:32:51,250 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 14:32:51,250 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 14:32:51,250 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 14:32:51,251 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 14:32:51,251 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 14:32:51,251 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 14:32:51,251 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 14:32:51,253 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 14:32:51,253 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 14:32:51,253 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 14:32:51,254 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 14:32:51,254 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 14:32:51,254 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 14:32:51,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 14:32:51,254 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 14:32:51,255 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 14:32:51,255 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 14:32:51,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 14:32:51,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 14:32:51,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 14:32:51,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 14:32:51,343 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 14:32:51,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label53_true-unreach-call.c [2018-08-08 14:32:51,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e582740/b7d8eb163ddd45d6b792a1bf563773b5/FLAGb80440971 [2018-08-08 14:32:52,014 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 14:32:52,016 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label53_true-unreach-call.c [2018-08-08 14:32:52,041 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e582740/b7d8eb163ddd45d6b792a1bf563773b5/FLAGb80440971 [2018-08-08 14:32:52,063 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e582740/b7d8eb163ddd45d6b792a1bf563773b5 [2018-08-08 14:32:52,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 14:32:52,080 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 14:32:52,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 14:32:52,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 14:32:52,091 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 14:32:52,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:32:52" (1/1) ... [2018-08-08 14:32:52,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b33cea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:52, skipping insertion in model container [2018-08-08 14:32:52,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:32:52" (1/1) ... [2018-08-08 14:32:52,336 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 14:32:52,851 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:32:52,870 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 14:32:53,146 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:32:53,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53 WrapperNode [2018-08-08 14:32:53,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 14:32:53,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 14:32:53,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 14:32:53,246 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 14:32:53,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 14:32:53,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 14:32:53,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 14:32:53,436 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 14:32:53,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (1/1) ... [2018-08-08 14:32:53,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 14:32:53,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 14:32:53,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 14:32:53,959 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 14:32:53,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (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 [2018-08-08 14:32:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 14:32:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 14:32:54,027 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 [2018-08-08 14:32:54,028 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 [2018-08-08 14:32:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 14:32:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 14:32:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 14:32:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 14:32:54,028 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 [2018-08-08 14:32:54,028 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 [2018-08-08 14:32:59,150 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 14:32:59,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:32:59 BoogieIcfgContainer [2018-08-08 14:32:59,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 14:32:59,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 14:32:59,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 14:32:59,155 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 14:32:59,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 02:32:52" (1/3) ... [2018-08-08 14:32:59,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266ab869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:32:59, skipping insertion in model container [2018-08-08 14:32:59,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:32:53" (2/3) ... [2018-08-08 14:32:59,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266ab869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:32:59, skipping insertion in model container [2018-08-08 14:32:59,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:32:59" (3/3) ... [2018-08-08 14:32:59,160 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label53_true-unreach-call.c [2018-08-08 14:32:59,170 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 14:32:59,180 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 14:32:59,235 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 14:32:59,236 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 14:32:59,236 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 14:32:59,236 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 14:32:59,237 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 14:32:59,237 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 14:32:59,237 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 14:32:59,237 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 14:32:59,237 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 14:32:59,268 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-08-08 14:32:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-08-08 14:32:59,277 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:32:59,278 INFO L376 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] [2018-08-08 14:32:59,279 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:32:59,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1890725156, now seen corresponding path program 1 times [2018-08-08 14:32:59,287 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:32:59,288 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-08-08 14:32:59,291 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [1378], [1382], [1388], [1392], [1579], [1580], [1581], [1583] [2018-08-08 14:32:59,357 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:32:59,357 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:33:00,858 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:33:00,860 INFO L272 AbstractInterpreter]: Visited 43 different actions 43 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 14:33:00,878 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:33:01,687 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 80.26% of their original sizes. [2018-08-08 14:33:01,687 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:33:01,975 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:33:01,976 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:33:01,977 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 14:33:01,977 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:33:01,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 14:33:01,990 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 14:33:01,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 14:33:01,993 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-08-08 14:33:12,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:33:12,547 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-08-08 14:33:12,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 14:33:12,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-08-08 14:33:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:33:12,573 INFO L225 Difference]: With dead ends: 1158 [2018-08-08 14:33:12,573 INFO L226 Difference]: Without dead ends: 746 [2018-08-08 14:33:12,582 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 14:33:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-08-08 14:33:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-08-08 14:33:12,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-08-08 14:33:12,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-08-08 14:33:12,700 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 44 [2018-08-08 14:33:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:33:12,700 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-08-08 14:33:12,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 14:33:12,702 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-08-08 14:33:12,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-08-08 14:33:12,713 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:33:12,714 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:33:12,714 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:33:12,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2107067614, now seen corresponding path program 1 times [2018-08-08 14:33:12,715 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:33:12,715 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-08-08 14:33:12,717 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [582], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:33:12,731 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:33:12,731 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:33:16,549 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:33:27,235 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:33:27,236 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:33:27,246 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:33:29,456 INFO L232 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 78.28% of their original sizes. [2018-08-08 14:33:29,457 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:33:31,790 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:33:31,790 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:33:31,790 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-08-08 14:33:31,790 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:33:31,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-08-08 14:33:31,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-08-08 14:33:31,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-08-08 14:33:31,793 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 19 states. [2018-08-08 14:34:10,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:34:10,950 INFO L93 Difference]: Finished difference Result 2680 states and 4847 transitions. [2018-08-08 14:34:10,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-08-08 14:34:10,953 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 136 [2018-08-08 14:34:10,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:34:10,966 INFO L225 Difference]: With dead ends: 2680 [2018-08-08 14:34:10,966 INFO L226 Difference]: Without dead ends: 2280 [2018-08-08 14:34:10,970 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2018-08-08 14:34:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2018-08-08 14:34:11,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1092. [2018-08-08 14:34:11,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1092 states. [2018-08-08 14:34:11,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1437 transitions. [2018-08-08 14:34:11,034 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1437 transitions. Word has length 136 [2018-08-08 14:34:11,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:34:11,035 INFO L480 AbstractCegarLoop]: Abstraction has 1092 states and 1437 transitions. [2018-08-08 14:34:11,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-08-08 14:34:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1437 transitions. [2018-08-08 14:34:11,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-08-08 14:34:11,040 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:34:11,041 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:34:11,041 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:34:11,043 INFO L82 PathProgramCache]: Analyzing trace with hash -592210602, now seen corresponding path program 1 times [2018-08-08 14:34:11,043 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:34:11,043 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-08-08 14:34:11,047 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:34:11,054 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:34:11,055 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:34:16,646 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:34:31,596 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:34:31,597 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:34:31,628 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:34:34,088 INFO L232 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 78.06% of their original sizes. [2018-08-08 14:34:34,088 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:34:35,752 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:34:35,752 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:34:35,752 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-08-08 14:34:35,752 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:34:35,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-08-08 14:34:35,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-08-08 14:34:35,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2018-08-08 14:34:35,754 INFO L87 Difference]: Start difference. First operand 1092 states and 1437 transitions. Second operand 20 states. [2018-08-08 14:35:13,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:35:13,631 INFO L93 Difference]: Finished difference Result 4559 states and 6808 transitions. [2018-08-08 14:35:13,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-08-08 14:35:13,641 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 172 [2018-08-08 14:35:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:35:13,660 INFO L225 Difference]: With dead ends: 4559 [2018-08-08 14:35:13,660 INFO L226 Difference]: Without dead ends: 3811 [2018-08-08 14:35:13,664 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 188 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=349, Invalid=983, Unknown=0, NotChecked=0, Total=1332 [2018-08-08 14:35:13,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2018-08-08 14:35:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 1442. [2018-08-08 14:35:13,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1442 states. [2018-08-08 14:35:13,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1802 transitions. [2018-08-08 14:35:13,752 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1802 transitions. Word has length 172 [2018-08-08 14:35:13,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:35:13,753 INFO L480 AbstractCegarLoop]: Abstraction has 1442 states and 1802 transitions. [2018-08-08 14:35:13,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-08-08 14:35:13,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1802 transitions. [2018-08-08 14:35:13,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-08-08 14:35:13,767 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:35:13,768 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:35:13,768 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:35:13,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1657561462, now seen corresponding path program 1 times [2018-08-08 14:35:13,768 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:35:13,769 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-08-08 14:35:13,772 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [995], [999], [1003], [1007], [1011], [1015], [1019], [1023], [1027], [1031], [1035], [1039], [1043], [1047], [1051], [1055], [1059], [1063], [1067], [1071], [1075], [1079], [1083], [1087], [1091], [1095], [1099], [1103], [1107], [1111], [1115], [1119], [1123], [1127], [1131], [1135], [1139], [1143], [1147], [1151], [1155], [1159], [1163], [1167], [1171], [1174], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:35:13,784 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:35:13,784 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:35:41,441 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:35:41,441 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:35:41,450 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:35:44,381 INFO L232 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 77.75% of their original sizes. [2018-08-08 14:35:44,381 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:35:48,876 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:35:48,876 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:35:48,876 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 14:35:48,876 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:35:48,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 14:35:48,877 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 14:35:48,877 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-08-08 14:35:48,878 INFO L87 Difference]: Start difference. First operand 1442 states and 1802 transitions. Second operand 15 states. [2018-08-08 14:36:08,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:36:08,696 INFO L93 Difference]: Finished difference Result 2883 states and 3930 transitions. [2018-08-08 14:36:08,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-08-08 14:36:08,702 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 284 [2018-08-08 14:36:08,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:36:08,710 INFO L225 Difference]: With dead ends: 2883 [2018-08-08 14:36:08,711 INFO L226 Difference]: Without dead ends: 1785 [2018-08-08 14:36:08,714 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 297 GetRequests, 239 SyntacticMatches, 31 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2018-08-08 14:36:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2018-08-08 14:36:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1782. [2018-08-08 14:36:08,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1782 states. [2018-08-08 14:36:08,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2159 transitions. [2018-08-08 14:36:08,783 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2159 transitions. Word has length 284 [2018-08-08 14:36:08,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:36:08,783 INFO L480 AbstractCegarLoop]: Abstraction has 1782 states and 2159 transitions. [2018-08-08 14:36:08,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 14:36:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2159 transitions. [2018-08-08 14:36:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-08-08 14:36:08,789 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:36:08,789 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:36:08,789 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:36:08,790 INFO L82 PathProgramCache]: Analyzing trace with hash -423598362, now seen corresponding path program 1 times [2018-08-08 14:36:08,790 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:36:08,790 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-08-08 14:36:08,790 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [995], [999], [1003], [1007], [1011], [1015], [1019], [1023], [1027], [1031], [1035], [1039], [1043], [1047], [1051], [1055], [1059], [1063], [1067], [1071], [1075], [1079], [1083], [1087], [1091], [1095], [1099], [1103], [1107], [1111], [1115], [1119], [1123], [1127], [1131], [1135], [1139], [1143], [1147], [1151], [1155], [1159], [1163], [1167], [1171], [1175], [1179], [1183], [1187], [1191], [1195], [1199], [1203], [1206], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-08-08 14:36:08,797 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:36:08,798 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:36:51,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:36:51,339 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 14:36:51,344 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:36:53,993 INFO L232 lantSequenceWeakener]: Weakened 290 states. On average, predicates are now at 77.74% of their original sizes. [2018-08-08 14:36:53,993 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:37:00,805 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:37:00,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:37:00,806 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 14:37:00,806 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:37:00,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 14:37:00,807 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 14:37:00,807 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-08-08 14:37:00,807 INFO L87 Difference]: Start difference. First operand 1782 states and 2159 transitions. Second operand 15 states. Received shutdown request... [2018-08-08 14:37:17,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-08-08 14:37:17,166 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 14:37:17,173 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 14:37:17,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 02:37:17 BoogieIcfgContainer [2018-08-08 14:37:17,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 14:37:17,174 INFO L168 Benchmark]: Toolchain (without parser) took 265095.93 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 917.6 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:17,176 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. [2018-08-08 14:37:17,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1161.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:17,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 189.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:17,179 INFO L168 Benchmark]: Boogie Preprocessor took 523.50 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 852.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:17,180 INFO L168 Benchmark]: RCFGBuilder took 5191.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 279.8 MB). Peak memory consumption was 279.8 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:17,180 INFO L168 Benchmark]: TraceAbstraction took 258021.68 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 659.4 MB. Max. memory is 7.1 GB. [2018-08-08 14:37:17,185 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 1161.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 189.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 523.50 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 852.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5191.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 279.8 MB). Peak memory consumption was 279.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 258021.68 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 659.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while BasicCegarLoop was constructing difference of abstraction (1782states) and FLOYD_HOARE automaton (currently 23 states, 15 states before enhancement), while ReachableStatesComputation was computing reachable states (2562 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 257.9s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 123.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1883 SDtfs, 15733 SDslu, 1675 SDs, 0 SdLazy, 21582 SolverSat, 2920 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 112.5s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 985 GetRequests, 780 SyntacticMatches, 78 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 19.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1782occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 106.9s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9952637686869164 AbsIntWeakeningRatio, 0.10184182015167931 AbsIntAvgWeakeningVarsNumRemoved, 32.37811484290358 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 3562 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, 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/Problem16_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_14-37-17-199.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_14-37-17-199.csv Completed graceful shutdown