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/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 21:54:11,153 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 21:54:11,156 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 21:54:11,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 21:54:11,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 21:54:11,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 21:54:11,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 21:54:11,182 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 21:54:11,184 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 21:54:11,187 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 21:54:11,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 21:54:11,188 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 21:54:11,189 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 21:54:11,192 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 21:54:11,195 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 21:54:11,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 21:54:11,206 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 21:54:11,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 21:54:11,212 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 21:54:11,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 21:54:11,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 21:54:11,219 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 21:54:11,221 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 21:54:11,222 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 21:54:11,222 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 21:54:11,225 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 21:54:11,226 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 21:54:11,226 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 21:54:11,227 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 21:54:11,229 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 21:54:11,231 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 21:54:11,231 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 21:54:11,232 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 21:54:11,232 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 21:54:11,234 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 21:54:11,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 21:54:11,236 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 21:54:11,265 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 21:54:11,265 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 21:54:11,266 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 21:54:11,266 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 21:54:11,266 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 21:54:11,267 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 21:54:11,267 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 21:54:11,267 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 21:54:11,267 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 21:54:11,267 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 21:54:11,267 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 21:54:11,268 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 21:54:11,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 21:54:11,270 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 21:54:11,270 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 21:54:11,270 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 21:54:11,270 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 21:54:11,270 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 21:54:11,270 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 21:54:11,271 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 21:54:11,271 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 21:54:11,271 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 21:54:11,271 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 21:54:11,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 21:54:11,273 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 21:54:11,273 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 21:54:11,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 21:54:11,273 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 21:54:11,273 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 21:54:11,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 21:54:11,274 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 21:54:11,274 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 21:54:11,274 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 21:54:11,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 21:54:11,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 21:54:11,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 21:54:11,345 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 21:54:11,345 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 21:54:11,346 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39_true-unreach-call.c [2018-07-23 21:54:11,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586eea833/ec36937d354648daa8f8510a860df405/FLAGd51b77678 [2018-07-23 21:54:12,039 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 21:54:12,040 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label39_true-unreach-call.c [2018-07-23 21:54:12,057 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586eea833/ec36937d354648daa8f8510a860df405/FLAGd51b77678 [2018-07-23 21:54:12,083 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586eea833/ec36937d354648daa8f8510a860df405 [2018-07-23 21:54:12,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 21:54:12,101 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 21:54:12,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 21:54:12,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 21:54:12,112 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 21:54:12,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:12,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22224105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12, skipping insertion in model container [2018-07-23 21:54:12,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:12,334 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 21:54:12,649 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 21:54:12,671 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 21:54:12,813 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 21:54:12,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12 WrapperNode [2018-07-23 21:54:12,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 21:54:12,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 21:54:12,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 21:54:12,879 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 21:54:12,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:12,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 21:54:13,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 21:54:13,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 21:54:13,038 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 21:54:13,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (1/1) ... [2018-07-23 21:54:13,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 21:54:13,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 21:54:13,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 21:54:13,306 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 21:54:13,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (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 [2018-07-23 21:54:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 21:54:13,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 21:54:13,382 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 [2018-07-23 21:54:13,382 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 [2018-07-23 21:54:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 21:54:13,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 21:54:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 21:54:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 21:54:16,683 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 21:54:16,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 09:54:16 BoogieIcfgContainer [2018-07-23 21:54:16,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 21:54:16,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 21:54:16,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 21:54:16,699 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 21:54:16,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 09:54:12" (1/3) ... [2018-07-23 21:54:16,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7348faa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 09:54:16, skipping insertion in model container [2018-07-23 21:54:16,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:54:12" (2/3) ... [2018-07-23 21:54:16,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7348faa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 09:54:16, skipping insertion in model container [2018-07-23 21:54:16,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 09:54:16" (3/3) ... [2018-07-23 21:54:16,708 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label39_true-unreach-call.c [2018-07-23 21:54:16,719 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 21:54:16,732 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 21:54:16,787 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 21:54:16,787 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 21:54:16,788 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 21:54:16,788 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 21:54:16,788 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 21:54:16,788 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 21:54:16,788 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 21:54:16,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 21:54:16,789 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 21:54:16,817 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-07-23 21:54:16,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 21:54:16,828 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:54:16,829 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] [2018-07-23 21:54:16,829 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]=== [2018-07-23 21:54:16,835 INFO L82 PathProgramCache]: Analyzing trace with hash -113906311, now seen corresponding path program 1 times [2018-07-23 21:54:16,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:54:16,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:54:16,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:54:16,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:54:16,897 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:54:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:54:17,274 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:54:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:54:17,395 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:54:17,395 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 21:54:17,395 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:54:17,400 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 21:54:17,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 21:54:17,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 21:54:17,417 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-07-23 21:54:19,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:54:19,253 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-07-23 21:54:19,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 21:54:19,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-07-23 21:54:19,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:54:19,277 INFO L225 Difference]: With dead ends: 574 [2018-07-23 21:54:19,277 INFO L226 Difference]: Without dead ends: 356 [2018-07-23 21:54:19,284 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 [2018-07-23 21:54:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-07-23 21:54:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-07-23 21:54:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-23 21:54:19,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-07-23 21:54:19,359 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 33 [2018-07-23 21:54:19,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:54:19,360 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-07-23 21:54:19,360 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 21:54:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-07-23 21:54:19,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 21:54:19,366 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:54:19,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:54:19,367 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]=== [2018-07-23 21:54:19,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1481876616, now seen corresponding path program 1 times [2018-07-23 21:54:19,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:54:19,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:54:19,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:54:19,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:54:19,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:54:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:54:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:54:19,704 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:54:19,704 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 21:54:19,705 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:54:19,707 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 21:54:19,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 21:54:19,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 21:54:19,708 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 6 states. [2018-07-23 21:54:21,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:54:21,510 INFO L93 Difference]: Finished difference Result 867 states and 1507 transitions. [2018-07-23 21:54:21,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 21:54:21,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2018-07-23 21:54:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:54:21,519 INFO L225 Difference]: With dead ends: 867 [2018-07-23 21:54:21,519 INFO L226 Difference]: Without dead ends: 517 [2018-07-23 21:54:21,521 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 21:54:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-07-23 21:54:21,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 508. [2018-07-23 21:54:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-07-23 21:54:21,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 831 transitions. [2018-07-23 21:54:21,563 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 831 transitions. Word has length 107 [2018-07-23 21:54:21,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:54:21,564 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 831 transitions. [2018-07-23 21:54:21,564 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 21:54:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 831 transitions. [2018-07-23 21:54:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 21:54:21,568 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:54:21,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:54:21,568 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]=== [2018-07-23 21:54:21,569 INFO L82 PathProgramCache]: Analyzing trace with hash -548029276, now seen corresponding path program 1 times [2018-07-23 21:54:21,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:54:21,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:54:21,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:54:21,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:54:21,571 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:54:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:54:21,875 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:54:21,876 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:54:21,876 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:54:21,877 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-07-23 21:54:21,880 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:54:21,949 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:54:21,949 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:54:30,966 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:54:30,968 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:54:30,983 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:54:33,937 INFO L232 lantSequenceWeakener]: Weakened 111 states. On average, predicates are now at 73.41% of their original sizes. [2018-07-23 21:54:33,938 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:54:36,067 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:54:36,068 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:54:36,069 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-07-23 21:54:36,069 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:54:36,069 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 21:54:36,070 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 21:54:36,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 21:54:36,070 INFO L87 Difference]: Start difference. First operand 508 states and 831 transitions. Second operand 11 states. [2018-07-23 21:54:41,882 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:55:16,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:55:16,767 INFO L93 Difference]: Finished difference Result 1448 states and 2424 transitions. [2018-07-23 21:55:16,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 21:55:16,767 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2018-07-23 21:55:16,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:55:16,776 INFO L225 Difference]: With dead ends: 1448 [2018-07-23 21:55:16,776 INFO L226 Difference]: Without dead ends: 946 [2018-07-23 21:55:16,780 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 119 GetRequests, 82 SyntacticMatches, 21 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 21:55:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2018-07-23 21:55:16,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 943. [2018-07-23 21:55:16,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2018-07-23 21:55:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1288 transitions. [2018-07-23 21:55:16,842 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1288 transitions. Word has length 113 [2018-07-23 21:55:16,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:55:16,846 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1288 transitions. [2018-07-23 21:55:16,846 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 21:55:16,846 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1288 transitions. [2018-07-23 21:55:16,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-23 21:55:16,857 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:55:16,857 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 21:55:16,858 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]=== [2018-07-23 21:55:16,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1972360342, now seen corresponding path program 1 times [2018-07-23 21:55:16,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:55:16,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:55:16,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:55:16,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:55:16,860 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:55:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:55:17,252 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:55:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 53 proven. 6 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-07-23 21:55:17,554 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:55:17,554 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:55:17,555 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-07-23 21:55:17,555 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:55:17,562 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:55:17,562 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:55:19,211 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:55:39,292 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:55:39,292 INFO L272 AbstractInterpreter]: Visited 88 different actions 510 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-07-23 21:55:39,322 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:55:40,668 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 73.17% of their original sizes. [2018-07-23 21:55:40,668 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:55:41,424 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:55:41,425 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:55:41,425 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-07-23 21:55:41,426 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:55:41,427 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 21:55:41,427 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 21:55:41,427 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-07-23 21:55:41,427 INFO L87 Difference]: Start difference. First operand 943 states and 1288 transitions. Second operand 14 states. [2018-07-23 21:56:13,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:56:13,600 INFO L93 Difference]: Finished difference Result 2179 states and 3387 transitions. [2018-07-23 21:56:13,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 21:56:13,600 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 184 [2018-07-23 21:56:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:56:13,610 INFO L225 Difference]: With dead ends: 2179 [2018-07-23 21:56:13,610 INFO L226 Difference]: Without dead ends: 1677 [2018-07-23 21:56:13,614 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2018-07-23 21:56:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2018-07-23 21:56:13,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1552. [2018-07-23 21:56:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2018-07-23 21:56:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 2075 transitions. [2018-07-23 21:56:13,672 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 2075 transitions. Word has length 184 [2018-07-23 21:56:13,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:56:13,673 INFO L471 AbstractCegarLoop]: Abstraction has 1552 states and 2075 transitions. [2018-07-23 21:56:13,673 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 21:56:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 2075 transitions. [2018-07-23 21:56:13,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-07-23 21:56:13,678 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:56:13,678 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 21:56:13,679 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]=== [2018-07-23 21:56:13,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1020262227, now seen corresponding path program 1 times [2018-07-23 21:56:13,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:56:13,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:56:13,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:56:13,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:56:13,681 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:56:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:56:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-07-23 21:56:13,875 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:56:13,875 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 21:56:13,875 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:56:13,876 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 21:56:13,876 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 21:56:13,876 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 21:56:13,876 INFO L87 Difference]: Start difference. First operand 1552 states and 2075 transitions. Second operand 4 states. [2018-07-23 21:56:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:56:15,532 INFO L93 Difference]: Finished difference Result 4043 states and 6054 transitions. [2018-07-23 21:56:15,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 21:56:15,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 217 [2018-07-23 21:56:15,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:56:15,558 INFO L225 Difference]: With dead ends: 4043 [2018-07-23 21:56:15,558 INFO L226 Difference]: Without dead ends: 2932 [2018-07-23 21:56:15,568 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 21:56:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2018-07-23 21:56:15,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2861. [2018-07-23 21:56:15,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2861 states. [2018-07-23 21:56:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4124 transitions. [2018-07-23 21:56:15,697 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4124 transitions. Word has length 217 [2018-07-23 21:56:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:56:15,698 INFO L471 AbstractCegarLoop]: Abstraction has 2861 states and 4124 transitions. [2018-07-23 21:56:15,698 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 21:56:15,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4124 transitions. [2018-07-23 21:56:15,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-07-23 21:56:15,710 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:56:15,711 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 21:56:15,711 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]=== [2018-07-23 21:56:15,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1500837981, now seen corresponding path program 1 times [2018-07-23 21:56:15,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:56:15,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:56:15,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:56:15,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:56:15,713 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:56:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:56:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:56:16,305 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:56:16,306 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:56:16,306 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-07-23 21:56:16,306 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [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], [762], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:56:16,316 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:56:16,317 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:56:17,733 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:56:35,857 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:56:35,857 INFO L272 AbstractInterpreter]: Visited 145 different actions 284 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:56:35,863 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:56:42,277 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 73.09% of their original sizes. [2018-07-23 21:56:42,278 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:56:43,961 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:56:43,962 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:56:43,962 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-07-23 21:56:43,963 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:56:43,964 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 21:56:43,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 21:56:43,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-07-23 21:56:43,965 INFO L87 Difference]: Start difference. First operand 2861 states and 4124 transitions. Second operand 13 states. [2018-07-23 21:57:33,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:57:33,060 INFO L93 Difference]: Finished difference Result 5430 states and 7978 transitions. [2018-07-23 21:57:33,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 21:57:33,061 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 241 [2018-07-23 21:57:33,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:57:33,077 INFO L225 Difference]: With dead ends: 5430 [2018-07-23 21:57:33,078 INFO L226 Difference]: Without dead ends: 3010 [2018-07-23 21:57:33,087 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 251 GetRequests, 208 SyntacticMatches, 21 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2018-07-23 21:57:33,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2018-07-23 21:57:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 3007. [2018-07-23 21:57:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3007 states. [2018-07-23 21:57:33,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4285 transitions. [2018-07-23 21:57:33,191 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4285 transitions. Word has length 241 [2018-07-23 21:57:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:57:33,192 INFO L471 AbstractCegarLoop]: Abstraction has 3007 states and 4285 transitions. [2018-07-23 21:57:33,192 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 21:57:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4285 transitions. [2018-07-23 21:57:33,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-07-23 21:57:33,203 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:57:33,204 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 21:57:33,204 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]=== [2018-07-23 21:57:33,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1460657980, now seen corresponding path program 1 times [2018-07-23 21:57:33,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:57:33,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:57:33,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:57:33,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:57:33,206 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:57:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:57:33,521 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:57:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 45 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:57:34,104 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:57:34,104 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:57:34,104 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-07-23 21:57:34,105 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:57:34,115 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:57:34,116 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:57:37,410 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:57:53,285 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:57:53,286 INFO L272 AbstractInterpreter]: Visited 145 different actions 284 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:57:53,291 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:58:01,195 INFO L232 lantSequenceWeakener]: Weakened 284 states. On average, predicates are now at 73.03% of their original sizes. [2018-07-23 21:58:01,195 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:58:02,831 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:58:02,831 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:58:02,831 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2018-07-23 21:58:02,831 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:58:02,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 21:58:02,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 21:58:02,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-07-23 21:58:02,833 INFO L87 Difference]: Start difference. First operand 3007 states and 4285 transitions. Second operand 13 states. Received shutdown request... [2018-07-23 21:58:03,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 21:58:03,434 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 21:58:03,438 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 21:58:03,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 09:58:03 BoogieIcfgContainer [2018-07-23 21:58:03,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 21:58:03,439 INFO L168 Benchmark]: Toolchain (without parser) took 231341.98 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 21:58:03,440 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-23 21:58:03,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 21:58:03,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 21:58:03,442 INFO L168 Benchmark]: Boogie Preprocessor took 267.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -868.3 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2018-07-23 21:58:03,443 INFO L168 Benchmark]: RCFGBuilder took 3379.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 123.0 MB). Peak memory consumption was 123.0 MB. Max. memory is 7.1 GB. [2018-07-23 21:58:03,444 INFO L168 Benchmark]: TraceAbstraction took 226752.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -644.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-23 21:58:03,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 776.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 158.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 267.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -868.3 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3379.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 123.0 MB). Peak memory consumption was 123.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226752.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -644.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 82). Cancelled while BasicCegarLoop was constructing difference of abstraction (3007states) and interpolant automaton (currently 5 states, 13 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 226.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 128.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 933 SDtfs, 5046 SDslu, 1383 SDs, 0 SdLazy, 5872 SolverSat, 1069 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 874 GetRequests, 721 SyntacticMatches, 66 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3007occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 69.6s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9945585896076351 AbsIntWeakeningRatio, 0.11951219512195121 AbsIntAvgWeakeningVarsNumRemoved, 211.22073170731707 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 211 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1181 NumberOfCodeBlocks, 1181 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1174 ConstructedInterpolants, 0 QuantifiedInterpolants, 986640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 450/589 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/Problem10_label39_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_21-58-03-463.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label39_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_21-58-03-463.csv Completed graceful shutdown