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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:39,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:39,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:39,181 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:39,181 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:39,182 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:39,183 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:39,185 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:39,186 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:39,187 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:39,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:39,188 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:39,189 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:39,191 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:39,192 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:39,193 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:39,193 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:39,195 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:39,197 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:39,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:39,200 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:39,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:39,204 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 21:03:39,212 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 21:03:39,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:39,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:39,235 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:39,236 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:39,236 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:39,236 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:39,236 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:39,236 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:39,237 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:39,237 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:39,237 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:39,238 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:39,238 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:39,238 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:39,238 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:39,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:39,239 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:39,239 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:39,239 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:39,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:39,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:39,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:39,240 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:39,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:39,241 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:39,241 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:39,241 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:39,241 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:39,241 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:39,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:39,242 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:39,242 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:39,242 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:39,319 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:39,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:39,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:39,346 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:39,346 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:39,347 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-15 21:03:39,718 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/687de6bce/085549a4d77240f2939e6d29ffd43842/FLAG83a18a867 [2018-09-15 21:03:39,911 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:39,912 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-15 21:03:39,920 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/687de6bce/085549a4d77240f2939e6d29ffd43842/FLAG83a18a867 [2018-09-15 21:03:39,941 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/687de6bce/085549a4d77240f2939e6d29ffd43842 [2018-09-15 21:03:39,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:39,956 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:39,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:39,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:39,964 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:39,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:39" (1/1) ... [2018-09-15 21:03:39,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48393e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:39, skipping insertion in model container [2018-09-15 21:03:39,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:39" (1/1) ... [2018-09-15 21:03:39,981 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:40,206 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,240 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:40,281 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40 WrapperNode [2018-09-15 21:03:40,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:40,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:40,312 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:40,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:40,378 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:40,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:40,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:40,415 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:40,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (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 [2018-09-15 21:03:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-09-15 21:03:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-09-15 21:03:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:40,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:41,245 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:41,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:41 BoogieIcfgContainer [2018-09-15 21:03:41,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:41,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:41,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:41,251 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:41,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:39" (1/3) ... [2018-09-15 21:03:41,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219534c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:41, skipping insertion in model container [2018-09-15 21:03:41,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (2/3) ... [2018-09-15 21:03:41,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219534c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:41, skipping insertion in model container [2018-09-15 21:03:41,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:41" (3/3) ... [2018-09-15 21:03:41,255 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-15 21:03:41,265 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:41,273 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:41,323 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:41,324 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:41,325 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:41,325 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:41,325 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:41,325 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:41,326 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:41,326 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:41,326 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:41,347 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-09-15 21:03:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-15 21:03:41,355 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,357 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] [2018-09-15 21:03:41,358 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1773514428, now seen corresponding path program 1 times [2018-09-15 21:03:41,365 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,366 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-09-15 21:03:41,369 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [30], [32], [35], [39], [65], [67], [70], [76], [82], [86], [108], [109], [113], [126], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:41,403 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,404 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,508 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,509 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 21:03:41,528 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,586 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96% of their original sizes. [2018-09-15 21:03:41,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,618 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,623 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,623 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:41,623 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:41,635 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:41,635 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,638 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2018-09-15 21:03:41,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,700 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2018-09-15 21:03:41,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:41,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-09-15 21:03:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,710 INFO L225 Difference]: With dead ends: 97 [2018-09-15 21:03:41,710 INFO L226 Difference]: Without dead ends: 45 [2018-09-15 21:03:41,714 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-09-15 21:03:41,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-09-15 21:03:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-15 21:03:41,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-09-15 21:03:41,751 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 27 [2018-09-15 21:03:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,752 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-09-15 21:03:41,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-09-15 21:03:41,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-15 21:03:41,754 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,754 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] [2018-09-15 21:03:41,754 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1145549408, now seen corresponding path program 1 times [2018-09-15 21:03:41,755 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,755 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-09-15 21:03:41,756 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:41,759 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,778 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 21:03:41,799 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,828 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 90% of their original sizes. [2018-09-15 21:03:41,828 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,844 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,845 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,845 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:41,845 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:41,846 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:41,847 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,847 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 3 states. [2018-09-15 21:03:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,900 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2018-09-15 21:03:41,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:41,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-09-15 21:03:41,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,902 INFO L225 Difference]: With dead ends: 84 [2018-09-15 21:03:41,903 INFO L226 Difference]: Without dead ends: 48 [2018-09-15 21:03:41,904 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-15 21:03:41,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2018-09-15 21:03:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-15 21:03:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2018-09-15 21:03:41,913 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 34 [2018-09-15 21:03:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,913 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2018-09-15 21:03:41,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2018-09-15 21:03:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-15 21:03:41,915 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,915 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-15 21:03:41,915 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,916 INFO L82 PathProgramCache]: Analyzing trace with hash 381128697, now seen corresponding path program 1 times [2018-09-15 21:03:41,916 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,916 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-15 21:03:41,916 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:41,920 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,920 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:42,008 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:42,009 INFO L272 AbstractInterpreter]: Visited 20 different actions 40 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 52 variables. [2018-09-15 21:03:42,027 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:42,137 INFO L232 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 76.9% of their original sizes. [2018-09-15 21:03:42,138 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:42,431 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:42,432 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:42,432 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-15 21:03:42,432 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:42,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-15 21:03:42,433 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-15 21:03:42,433 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-09-15 21:03:42,433 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 9 states. [2018-09-15 21:03:42,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:42,960 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2018-09-15 21:03:42,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-15 21:03:42,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-09-15 21:03:42,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:42,969 INFO L225 Difference]: With dead ends: 107 [2018-09-15 21:03:42,969 INFO L226 Difference]: Without dead ends: 75 [2018-09-15 21:03:42,970 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-15 21:03:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-15 21:03:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 53. [2018-09-15 21:03:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-15 21:03:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2018-09-15 21:03:42,986 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 37 [2018-09-15 21:03:42,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:42,986 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2018-09-15 21:03:42,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-15 21:03:42,986 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2018-09-15 21:03:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-15 21:03:42,988 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:42,988 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-15 21:03:42,988 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:42,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1613016009, now seen corresponding path program 1 times [2018-09-15 21:03:42,989 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:42,989 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-15 21:03:42,989 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:42,992 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:42,992 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:43,046 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:43,046 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 52 variables. [2018-09-15 21:03:43,091 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:43,194 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 74.37% of their original sizes. [2018-09-15 21:03:43,194 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:43,508 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:43,508 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:43,509 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 21:03:43,509 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:43,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 21:03:43,510 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 21:03:43,510 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-09-15 21:03:43,510 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand 12 states. [2018-09-15 21:03:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:44,479 INFO L93 Difference]: Finished difference Result 127 states and 163 transitions. [2018-09-15 21:03:44,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-15 21:03:44,480 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-09-15 21:03:44,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:44,482 INFO L225 Difference]: With dead ends: 127 [2018-09-15 21:03:44,482 INFO L226 Difference]: Without dead ends: 85 [2018-09-15 21:03:44,486 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-09-15 21:03:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-15 21:03:44,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2018-09-15 21:03:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-15 21:03:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2018-09-15 21:03:44,503 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 37 [2018-09-15 21:03:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:44,504 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2018-09-15 21:03:44,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 21:03:44,504 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2018-09-15 21:03:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-15 21:03:44,506 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:44,506 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-15 21:03:44,507 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:44,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1402087609, now seen corresponding path program 1 times [2018-09-15 21:03:44,508 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:44,508 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-15 21:03:44,508 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [37], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:44,511 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:44,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:44,593 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:44,593 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 51 variables. [2018-09-15 21:03:44,599 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:44,667 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 74.37% of their original sizes. [2018-09-15 21:03:44,668 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:44,945 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:44,946 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:44,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 21:03:44,946 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:44,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 21:03:44,947 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 21:03:44,948 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-09-15 21:03:44,948 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand 11 states. [2018-09-15 21:03:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:45,420 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2018-09-15 21:03:45,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-15 21:03:45,421 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-09-15 21:03:45,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:45,422 INFO L225 Difference]: With dead ends: 120 [2018-09-15 21:03:45,422 INFO L226 Difference]: Without dead ends: 76 [2018-09-15 21:03:45,423 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-15 21:03:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-15 21:03:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2018-09-15 21:03:45,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-15 21:03:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2018-09-15 21:03:45,432 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 37 [2018-09-15 21:03:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:45,433 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2018-09-15 21:03:45,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 21:03:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2018-09-15 21:03:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-15 21:03:45,435 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:45,435 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:45,435 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:45,435 INFO L82 PathProgramCache]: Analyzing trace with hash -976115869, now seen corresponding path program 1 times [2018-09-15 21:03:45,436 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:45,436 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-15 21:03:45,436 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:45,438 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:45,439 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:45,496 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:45,496 INFO L272 AbstractInterpreter]: Visited 21 different actions 86 times. Merged at 7 different actions 51 times. Widened at 2 different actions 6 times. Found 2 fixpoints after 2 different actions. Largest state had 53 variables. [2018-09-15 21:03:45,535 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:45,601 INFO L232 lantSequenceWeakener]: Weakened 23 states. On average, predicates are now at 75.55% of their original sizes. [2018-09-15 21:03:45,602 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:45,958 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:45,959 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:45,959 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 21:03:45,959 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:45,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 21:03:45,960 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 21:03:45,960 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-09-15 21:03:45,961 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand 10 states. [2018-09-15 21:03:46,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:46,475 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2018-09-15 21:03:46,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-15 21:03:46,475 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-09-15 21:03:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:46,477 INFO L225 Difference]: With dead ends: 125 [2018-09-15 21:03:46,478 INFO L226 Difference]: Without dead ends: 91 [2018-09-15 21:03:46,479 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-15 21:03:46,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-09-15 21:03:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 64. [2018-09-15 21:03:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-15 21:03:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2018-09-15 21:03:46,488 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 41 [2018-09-15 21:03:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:46,488 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2018-09-15 21:03:46,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 21:03:46,489 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-09-15 21:03:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-15 21:03:46,490 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:46,490 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-15 21:03:46,490 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:46,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1324706721, now seen corresponding path program 1 times [2018-09-15 21:03:46,491 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:46,491 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-15 21:03:46,491 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [22], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:46,496 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:46,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:46,637 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:46,637 INFO L272 AbstractInterpreter]: Visited 33 different actions 232 times. Merged at 19 different actions 166 times. Widened at 3 different actions 11 times. Found 21 fixpoints after 4 different actions. Largest state had 53 variables. [2018-09-15 21:03:46,678 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:46,745 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 73.85% of their original sizes. [2018-09-15 21:03:46,745 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:47,258 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:47,259 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:47,259 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 21:03:47,259 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:47,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 21:03:47,260 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 21:03:47,260 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-09-15 21:03:47,261 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand 13 states. [2018-09-15 21:03:47,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:47,803 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2018-09-15 21:03:47,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-15 21:03:47,803 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-09-15 21:03:47,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:47,805 INFO L225 Difference]: With dead ends: 124 [2018-09-15 21:03:47,805 INFO L226 Difference]: Without dead ends: 65 [2018-09-15 21:03:47,806 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-09-15 21:03:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-15 21:03:47,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 49. [2018-09-15 21:03:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-15 21:03:47,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2018-09-15 21:03:47,818 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 41 [2018-09-15 21:03:47,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:47,819 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2018-09-15 21:03:47,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 21:03:47,819 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-09-15 21:03:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-15 21:03:47,820 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:47,821 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-15 21:03:47,821 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:47,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1521687200, now seen corresponding path program 1 times [2018-09-15 21:03:47,821 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:47,822 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-15 21:03:47,822 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:47,824 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:47,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:47,898 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:47,898 INFO L272 AbstractInterpreter]: Visited 24 different actions 130 times. Merged at 12 different actions 92 times. Widened at 3 different actions 10 times. Found 3 fixpoints after 3 different actions. Largest state had 53 variables. [2018-09-15 21:03:47,922 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:47,967 INFO L232 lantSequenceWeakener]: Weakened 24 states. On average, predicates are now at 74.95% of their original sizes. [2018-09-15 21:03:47,971 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:48,066 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:48,066 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:48,066 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 21:03:48,067 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:48,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 21:03:48,068 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 21:03:48,068 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-15 21:03:48,069 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 10 states. [2018-09-15 21:03:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:48,311 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2018-09-15 21:03:48,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-15 21:03:48,312 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-09-15 21:03:48,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:48,313 INFO L225 Difference]: With dead ends: 108 [2018-09-15 21:03:48,313 INFO L226 Difference]: Without dead ends: 76 [2018-09-15 21:03:48,314 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 21:03:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-15 21:03:48,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2018-09-15 21:03:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-15 21:03:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2018-09-15 21:03:48,323 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 42 [2018-09-15 21:03:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:48,323 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2018-09-15 21:03:48,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 21:03:48,324 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2018-09-15 21:03:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-15 21:03:48,325 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:48,325 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-15 21:03:48,325 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:48,325 INFO L82 PathProgramCache]: Analyzing trace with hash 779135390, now seen corresponding path program 1 times [2018-09-15 21:03:48,326 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:48,326 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-15 21:03:48,326 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-15 21:03:48,328 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:48,329 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:48,448 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:03:48,449 INFO L272 AbstractInterpreter]: Visited 40 different actions 259 times. Merged at 25 different actions 190 times. Widened at 4 different actions 14 times. Found 3 fixpoints after 3 different actions. Largest state had 53 variables. [2018-09-15 21:03:48,488 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:03:48,512 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:03:48,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:48 BoogieIcfgContainer [2018-09-15 21:03:48,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:48,513 INFO L168 Benchmark]: Toolchain (without parser) took 8559.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -285.1 MB). Peak memory consumption was 447.8 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:48,515 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-15 21:03:48,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.62 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. [2018-09-15 21:03:48,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:03:48,519 INFO L168 Benchmark]: Boogie Preprocessor took 36.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:03:48,520 INFO L168 Benchmark]: RCFGBuilder took 832.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:48,521 INFO L168 Benchmark]: TraceAbstraction took 7265.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 465.8 MB). Peak memory consumption was 465.8 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:48,530 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 353.62 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 Procedure Inliner took 66.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 832.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7265.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 465.8 MB). Peak memory consumption was 465.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L79] CALL char A [2 + 2 + 4 +1]; [L79] RET char A [2 + 2 + 4 +1]; [L81] int i = 0; [L81] COND TRUE i < 2 + 2 + 4 [L82] CALL A[i] = __VERIFIER_nondet_char() [L82] RET A[i] = __VERIFIER_nondet_char() [L81] i++ [L81] i++ [L81] COND FALSE !(i < 2 + 2 + 4) [L85] CALL A[2 + 2 + 4] = 0 [L85] RET A[2 + 2 + 4] = 0 [L86] CALL parse_expression_list (A) [L50] int start=0, i=-1, j=-1; [L50] int start=0, i=-1, j=-1; [L50] int start=0, i=-1, j=-1; [L51] CALL char str2[2]; [L51] RET char str2[2]; [L52] COND FALSE !(!str) [L54] i++ [L54] i++ [L55] CALL str[i] [L55] RET str[i] [L56] case 0: [L56] COND FALSE !(case 0:) [L74] CALL, EXPR str[i] [L74] RET, EXPR str[i] [L74] COND TRUE str[i] != 0 [L54] i++ [L54] i++ [L55] CALL str[i] [L55] RET str[i] [L56] case 0: [L56] COND TRUE case 0: [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] (str[start] == ' ') || (str[start] == '\t') [L57] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] (str[start] == ' ') || (str[start] == '\t') [L57] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L58] CALL, EXPR str[start] [L58] RET, EXPR str[start] [L58] COND TRUE str[start] == '"' [L58] start++ [L58] start++ [L59] j = i-1 [L60] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L60] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L60] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L61] (0 < j) && (str[j] == '"') [L61] COND TRUE (0 < j) && (str[j] == '"') [L61] CALL, EXPR str[j] [L61] RET, EXPR str[j] [L61] (0 < j) && (str[j] == '"') [L61] COND TRUE (0 < j) && (str[j] == '"') [L61] j-- [L61] j-- [L62] COND TRUE start<=j [L63] COND FALSE !(j-start+1>=2) [L66] FCALL r_strncpy(str2, str+start, j-start+1) [L67] CALL __VERIFIER_assert(j - start + 1 < 2) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. UNKNOWN Result, 7.1s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 661 SDslu, 1587 SDs, 0 SdLazy, 1151 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 316 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 9 AbstIntIterations, 8 AbstIntStrong, 0.8419496005639096 AbsIntWeakeningRatio, 2.298611111111111 AbsIntAvgWeakeningVarsNumRemoved, 5.704861111111111 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 124 StatesRemovedByMinimization, 7 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: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-03-48-543.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-03-48-543.csv Received shutdown request...