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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 09:05:00,179 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 09:05:00,180 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 09:05:00,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 09:05:00,193 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 09:05:00,194 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 09:05:00,195 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 09:05:00,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 09:05:00,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 09:05:00,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 09:05:00,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 09:05:00,200 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 09:05:00,201 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 09:05:00,202 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 09:05:00,203 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 09:05:00,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 09:05:00,206 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 09:05:00,211 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 09:05:00,213 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 09:05:00,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 09:05:00,221 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 09:05:00,222 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 09:05:00,228 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 09:05:00,228 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 09:05:00,228 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 09:05:00,229 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 09:05:00,231 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 09:05:00,233 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 09:05:00,233 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 09:05:00,234 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 09:05:00,237 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 09:05:00,237 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-11 09:05:00,241 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-11 09:05:00,262 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 09:05:00,262 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 09:05:00,263 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 09:05:00,263 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 09:05:00,264 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 09:05:00,264 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 09:05:00,264 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 09:05:00,264 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-11 09:05:00,264 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 09:05:00,265 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 09:05:00,265 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 09:05:00,265 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 09:05:00,266 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 09:05:00,266 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 09:05:00,266 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 09:05:00,266 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 09:05:00,266 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 09:05:00,267 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 09:05:00,267 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 09:05:00,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 09:05:00,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 09:05:00,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 09:05:00,268 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 09:05:00,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 09:05:00,268 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 09:05:00,268 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 09:05:00,269 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 09:05:00,269 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 09:05:00,269 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 09:05:00,269 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 09:05:00,269 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 09:05:00,270 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 09:05:00,270 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 09:05:00,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 09:05:00,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 09:05:00,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 09:05:00,358 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 09:05:00,359 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 09:05:00,360 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-11 09:05:00,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2576f3a80/7b2178f419d4405d91e521d59ab5fcf3/FLAG05ae194a2 [2018-09-11 09:05:00,869 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 09:05:00,870 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-11 09:05:00,876 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2576f3a80/7b2178f419d4405d91e521d59ab5fcf3/FLAG05ae194a2 [2018-09-11 09:05:00,889 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2576f3a80/7b2178f419d4405d91e521d59ab5fcf3 [2018-09-11 09:05:00,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 09:05:00,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 09:05:00,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 09:05:00,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 09:05:00,910 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 09:05:00,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:05:00" (1/1) ... [2018-09-11 09:05:00,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280b0a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:00, skipping insertion in model container [2018-09-11 09:05:00,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:05:00" (1/1) ... [2018-09-11 09:05:01,062 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 09:05:01,104 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:05:01,122 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 09:05:01,135 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:05:01,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01 WrapperNode [2018-09-11 09:05:01,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 09:05:01,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 09:05:01,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 09:05:01,159 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 09:05:01,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 09:05:01,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 09:05:01,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 09:05:01,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 09:05:01,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (1/1) ... [2018-09-11 09:05:01,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 09:05:01,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 09:05:01,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 09:05:01,223 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 09:05:01,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (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 [2018-09-11 09:05:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 09:05:01,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 09:05:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assert [2018-09-11 09:05:01,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assert [2018-09-11 09:05:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 09:05:01,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 09:05:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 09:05:01,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 09:05:01,968 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 09:05:01,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:05:01 BoogieIcfgContainer [2018-09-11 09:05:01,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 09:05:01,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 09:05:01,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 09:05:01,974 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 09:05:01,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 09:05:00" (1/3) ... [2018-09-11 09:05:01,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a447a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:05:01, skipping insertion in model container [2018-09-11 09:05:01,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:01" (2/3) ... [2018-09-11 09:05:01,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a447a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:05:01, skipping insertion in model container [2018-09-11 09:05:01,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:05:01" (3/3) ... [2018-09-11 09:05:01,978 INFO L112 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-11 09:05:01,988 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 09:05:01,998 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 09:05:02,047 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 09:05:02,047 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 09:05:02,048 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 09:05:02,048 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 09:05:02,048 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 09:05:02,048 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 09:05:02,048 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 09:05:02,048 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 09:05:02,048 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 09:05:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-09-11 09:05:02,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-11 09:05:02,082 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:02,083 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:02,084 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:02,091 INFO L82 PathProgramCache]: Analyzing trace with hash -61610569, now seen corresponding path program 1 times [2018-09-11 09:05:02,094 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:02,095 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-11 09:05:02,097 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [28], [32], [37], [40], [79], [80], [81], [83] [2018-09-11 09:05:02,156 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:02,156 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:02,267 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:02,269 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-11 09:05:02,287 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:02,377 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 37.14% of their original sizes. [2018-09-11 09:05:02,378 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:02,763 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:02,765 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:02,765 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-11 09:05:02,765 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:02,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-11 09:05:02,775 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-11 09:05:02,776 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-11 09:05:02,778 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 9 states. [2018-09-11 09:05:03,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:03,958 INFO L93 Difference]: Finished difference Result 115 states and 210 transitions. [2018-09-11 09:05:03,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-11 09:05:03,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-09-11 09:05:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:03,971 INFO L225 Difference]: With dead ends: 115 [2018-09-11 09:05:03,971 INFO L226 Difference]: Without dead ends: 69 [2018-09-11 09:05:03,977 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:03,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-11 09:05:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2018-09-11 09:05:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-11 09:05:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2018-09-11 09:05:04,043 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 15 [2018-09-11 09:05:04,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:04,044 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2018-09-11 09:05:04,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-11 09:05:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2018-09-11 09:05:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-11 09:05:04,048 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:04,048 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:04,048 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:04,049 INFO L82 PathProgramCache]: Analyzing trace with hash -813385546, now seen corresponding path program 1 times [2018-09-11 09:05:04,049 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:04,049 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2018-09-11 09:05:04,050 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [63], [79], [80], [81], [107], [108], [109], [110], [111] [2018-09-11 09:05:04,052 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:04,052 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:04,103 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:04,103 INFO L272 AbstractInterpreter]: Visited 20 different actions 28 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-11 09:05:04,110 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:04,222 INFO L232 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 62.73% of their original sizes. [2018-09-11 09:05:04,223 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:04,772 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:04,772 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:04,772 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-11 09:05:04,773 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:04,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-11 09:05:04,774 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-11 09:05:04,775 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-09-11 09:05:04,775 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand 11 states. [2018-09-11 09:05:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:06,014 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2018-09-11 09:05:06,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-11 09:05:06,015 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-09-11 09:05:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:06,017 INFO L225 Difference]: With dead ends: 79 [2018-09-11 09:05:06,018 INFO L226 Difference]: Without dead ends: 77 [2018-09-11 09:05:06,019 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-09-11 09:05:06,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-11 09:05:06,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 68. [2018-09-11 09:05:06,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-11 09:05:06,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2018-09-11 09:05:06,047 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 96 transitions. Word has length 25 [2018-09-11 09:05:06,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:06,047 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 96 transitions. [2018-09-11 09:05:06,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-11 09:05:06,048 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2018-09-11 09:05:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-11 09:05:06,049 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:06,050 INFO L376 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:06,050 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:06,050 INFO L82 PathProgramCache]: Analyzing trace with hash -667733324, now seen corresponding path program 1 times [2018-09-11 09:05:06,050 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:06,051 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-09-11 09:05:06,051 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [40], [63], [69], [79], [80], [81], [83], [107], [108], [109], [110], [111], [112], [113], [114] [2018-09-11 09:05:06,053 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:06,054 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:06,078 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:06,078 INFO L272 AbstractInterpreter]: Visited 26 different actions 44 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2018-09-11 09:05:06,116 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:06,225 INFO L232 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 65.79% of their original sizes. [2018-09-11 09:05:06,226 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:07,059 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:07,060 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:07,060 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 09:05:07,060 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:07,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 09:05:07,061 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 09:05:07,061 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:07,062 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. Second operand 13 states. [2018-09-11 09:05:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:08,798 INFO L93 Difference]: Finished difference Result 108 states and 157 transitions. [2018-09-11 09:05:08,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-11 09:05:08,803 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2018-09-11 09:05:08,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:08,810 INFO L225 Difference]: With dead ends: 108 [2018-09-11 09:05:08,810 INFO L226 Difference]: Without dead ends: 106 [2018-09-11 09:05:08,811 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-09-11 09:05:08,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-09-11 09:05:08,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2018-09-11 09:05:08,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-11 09:05:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 146 transitions. [2018-09-11 09:05:08,871 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 146 transitions. Word has length 39 [2018-09-11 09:05:08,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:08,871 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 146 transitions. [2018-09-11 09:05:08,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 09:05:08,872 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 146 transitions. [2018-09-11 09:05:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-11 09:05:08,874 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:08,875 INFO L376 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:08,875 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:08,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1082472865, now seen corresponding path program 1 times [2018-09-11 09:05:08,877 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:08,878 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-09-11 09:05:08,878 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [40], [43], [48], [53], [79], [80], [81], [83], [84], [85], [86], [87], [88], [89], [90], [91], [92], [93], [94], [95] [2018-09-11 09:05:08,880 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:08,880 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:08,918 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:08,918 INFO L272 AbstractInterpreter]: Visited 31 different actions 55 times. Never merged. Never widened. Never found a fixpoint. Largest state had 10 variables. [2018-09-11 09:05:08,959 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:09,034 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 61.56% of their original sizes. [2018-09-11 09:05:09,035 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:09,326 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:09,326 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:09,326 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-11 09:05:09,326 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:09,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-11 09:05:09,327 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-11 09:05:09,327 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-11 09:05:09,328 INFO L87 Difference]: Start difference. First operand 98 states and 146 transitions. Second operand 12 states. [2018-09-11 09:05:10,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:10,560 INFO L93 Difference]: Finished difference Result 133 states and 197 transitions. [2018-09-11 09:05:10,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-11 09:05:10,561 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-09-11 09:05:10,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:10,564 INFO L225 Difference]: With dead ends: 133 [2018-09-11 09:05:10,564 INFO L226 Difference]: Without dead ends: 131 [2018-09-11 09:05:10,565 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-11 09:05:10,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-09-11 09:05:10,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 119. [2018-09-11 09:05:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-09-11 09:05:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 177 transitions. [2018-09-11 09:05:10,610 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 177 transitions. Word has length 48 [2018-09-11 09:05:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:10,610 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 177 transitions. [2018-09-11 09:05:10,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-11 09:05:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 177 transitions. [2018-09-11 09:05:10,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-11 09:05:10,613 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:10,613 INFO L376 BasicCegarLoop]: trace histogram [7, 6, 6, 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] [2018-09-11 09:05:10,614 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:10,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1272349188, now seen corresponding path program 1 times [2018-09-11 09:05:10,614 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:10,614 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 52 with the following transitions: [2018-09-11 09:05:10,615 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [40], [43], [46], [69], [79], [80], [81], [83], [84], [85], [86], [107], [108], [109], [110], [111], [112], [113], [114] [2018-09-11 09:05:10,617 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:10,617 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:10,914 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:10,914 INFO L272 AbstractInterpreter]: Visited 30 different actions 344 times. Merged at 12 different actions 84 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 10 variables. [2018-09-11 09:05:10,953 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:11,021 INFO L232 lantSequenceWeakener]: Weakened 25 states. On average, predicates are now at 70% of their original sizes. [2018-09-11 09:05:11,022 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:11,397 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:11,398 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:11,398 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 09:05:11,398 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:11,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 09:05:11,399 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 09:05:11,399 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-09-11 09:05:11,399 INFO L87 Difference]: Start difference. First operand 119 states and 177 transitions. Second operand 14 states. [2018-09-11 09:05:13,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:13,262 INFO L93 Difference]: Finished difference Result 186 states and 285 transitions. [2018-09-11 09:05:13,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-11 09:05:13,263 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2018-09-11 09:05:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:13,268 INFO L225 Difference]: With dead ends: 186 [2018-09-11 09:05:13,268 INFO L226 Difference]: Without dead ends: 184 [2018-09-11 09:05:13,269 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2018-09-11 09:05:13,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-09-11 09:05:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 161. [2018-09-11 09:05:13,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-09-11 09:05:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 250 transitions. [2018-09-11 09:05:13,323 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 250 transitions. Word has length 51 [2018-09-11 09:05:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:13,323 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 250 transitions. [2018-09-11 09:05:13,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 09:05:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 250 transitions. [2018-09-11 09:05:13,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-11 09:05:13,326 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:13,326 INFO L376 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:13,327 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:13,327 INFO L82 PathProgramCache]: Analyzing trace with hash -492884639, now seen corresponding path program 1 times [2018-09-11 09:05:13,327 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:13,327 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 59 with the following transitions: [2018-09-11 09:05:13,327 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [40], [43], [48], [53], [79], [80], [81], [83], [84], [85], [86], [87], [88], [89], [90], [91], [92], [93], [94], [95], [96], [97], [98], [99] [2018-09-11 09:05:13,330 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:13,330 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:13,349 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:13,349 INFO L272 AbstractInterpreter]: Visited 35 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 10 variables. [2018-09-11 09:05:13,383 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:13,459 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 62.28% of their original sizes. [2018-09-11 09:05:13,459 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:13,714 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:13,715 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:13,715 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 09:05:13,716 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:13,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 09:05:13,717 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 09:05:13,717 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:13,717 INFO L87 Difference]: Start difference. First operand 161 states and 250 transitions. Second operand 13 states. [2018-09-11 09:05:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:15,251 INFO L93 Difference]: Finished difference Result 220 states and 330 transitions. [2018-09-11 09:05:15,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-11 09:05:15,257 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 58 [2018-09-11 09:05:15,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:15,260 INFO L225 Difference]: With dead ends: 220 [2018-09-11 09:05:15,262 INFO L226 Difference]: Without dead ends: 218 [2018-09-11 09:05:15,262 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-11 09:05:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-09-11 09:05:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 205. [2018-09-11 09:05:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-09-11 09:05:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 315 transitions. [2018-09-11 09:05:15,358 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 315 transitions. Word has length 58 [2018-09-11 09:05:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:15,358 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 315 transitions. [2018-09-11 09:05:15,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 09:05:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 315 transitions. [2018-09-11 09:05:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-09-11 09:05:15,366 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:15,366 INFO L376 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 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] [2018-09-11 09:05:15,367 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:15,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1718483739, now seen corresponding path program 1 times [2018-09-11 09:05:15,367 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:15,369 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 66 with the following transitions: [2018-09-11 09:05:15,370 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [35], [37], [40], [43], [46], [63], [69], [79], [80], [81], [83], [84], [85], [86], [107], [108], [109], [110], [111], [112], [113], [114] [2018-09-11 09:05:15,374 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:15,374 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:15,786 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:15,786 INFO L272 AbstractInterpreter]: Visited 32 different actions 1156 times. Merged at 16 different actions 299 times. Widened at 3 different actions 24 times. Found 38 fixpoints after 6 different actions. Largest state had 10 variables. [2018-09-11 09:05:15,792 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:15,862 INFO L232 lantSequenceWeakener]: Weakened 29 states. On average, predicates are now at 75.52% of their original sizes. [2018-09-11 09:05:15,863 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:16,124 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:16,125 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:16,125 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 09:05:16,126 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:16,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 09:05:16,127 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 09:05:16,127 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:16,127 INFO L87 Difference]: Start difference. First operand 205 states and 315 transitions. Second operand 13 states. [2018-09-11 09:05:17,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:17,242 INFO L93 Difference]: Finished difference Result 252 states and 382 transitions. [2018-09-11 09:05:17,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-11 09:05:17,243 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2018-09-11 09:05:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:17,246 INFO L225 Difference]: With dead ends: 252 [2018-09-11 09:05:17,247 INFO L226 Difference]: Without dead ends: 250 [2018-09-11 09:05:17,247 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-09-11 09:05:17,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-09-11 09:05:17,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 240. [2018-09-11 09:05:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-09-11 09:05:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 364 transitions. [2018-09-11 09:05:17,318 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 364 transitions. Word has length 65 [2018-09-11 09:05:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:17,318 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 364 transitions. [2018-09-11 09:05:17,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 09:05:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 364 transitions. [2018-09-11 09:05:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-11 09:05:17,320 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:17,320 INFO L376 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:17,321 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:17,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1144730545, now seen corresponding path program 1 times [2018-09-11 09:05:17,321 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:17,321 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2018-09-11 09:05:17,321 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [40], [43], [48], [53], [58], [79], [80], [81], [83], [84], [85], [86], [87], [88], [89], [90], [91], [92], [93], [94], [95], [96], [97], [98], [99], [100], [101], [102], [103] [2018-09-11 09:05:17,324 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:17,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:17,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:17,339 INFO L272 AbstractInterpreter]: Visited 40 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 12 variables. [2018-09-11 09:05:17,368 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:17,418 INFO L232 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 63.55% of their original sizes. [2018-09-11 09:05:17,418 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:17,709 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:17,709 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:17,709 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 09:05:17,709 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:17,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 09:05:17,710 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 09:05:17,711 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:17,711 INFO L87 Difference]: Start difference. First operand 240 states and 364 transitions. Second operand 13 states. [2018-09-11 09:05:20,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:20,145 INFO L93 Difference]: Finished difference Result 345 states and 522 transitions. [2018-09-11 09:05:20,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 09:05:20,147 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2018-09-11 09:05:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:20,150 INFO L225 Difference]: With dead ends: 345 [2018-09-11 09:05:20,150 INFO L226 Difference]: Without dead ends: 343 [2018-09-11 09:05:20,151 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-09-11 09:05:20,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2018-09-11 09:05:20,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 325. [2018-09-11 09:05:20,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-09-11 09:05:20,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 502 transitions. [2018-09-11 09:05:20,257 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 502 transitions. Word has length 69 [2018-09-11 09:05:20,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:20,257 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 502 transitions. [2018-09-11 09:05:20,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 09:05:20,258 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 502 transitions. [2018-09-11 09:05:20,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-09-11 09:05:20,259 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:20,260 INFO L376 BasicCegarLoop]: trace histogram [11, 10, 10, 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] [2018-09-11 09:05:20,260 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:20,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1931755588, now seen corresponding path program 1 times [2018-09-11 09:05:20,260 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:20,261 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 73 with the following transitions: [2018-09-11 09:05:20,261 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [40], [43], [48], [53], [63], [69], [79], [80], [81], [83], [84], [85], [86], [87], [88], [89], [90], [91], [92], [93], [94], [95], [107], [108], [109], [110], [111], [112], [113], [114] [2018-09-11 09:05:20,263 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:20,263 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:20,280 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:20,280 INFO L272 AbstractInterpreter]: Visited 41 different actions 83 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 12 variables. [2018-09-11 09:05:20,314 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:20,375 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 67.78% of their original sizes. [2018-09-11 09:05:20,375 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:20,657 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:20,657 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:20,657 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 09:05:20,657 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:20,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 09:05:20,658 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 09:05:20,658 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-09-11 09:05:20,658 INFO L87 Difference]: Start difference. First operand 325 states and 502 transitions. Second operand 14 states. [2018-09-11 09:05:23,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:23,403 INFO L93 Difference]: Finished difference Result 383 states and 589 transitions. [2018-09-11 09:05:23,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 09:05:23,408 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 72 [2018-09-11 09:05:23,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:23,411 INFO L225 Difference]: With dead ends: 383 [2018-09-11 09:05:23,412 INFO L226 Difference]: Without dead ends: 381 [2018-09-11 09:05:23,412 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 77 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-11 09:05:23,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-09-11 09:05:23,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 362. [2018-09-11 09:05:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2018-09-11 09:05:23,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 557 transitions. [2018-09-11 09:05:23,526 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 557 transitions. Word has length 72 [2018-09-11 09:05:23,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:23,527 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 557 transitions. [2018-09-11 09:05:23,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 09:05:23,527 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 557 transitions. [2018-09-11 09:05:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-09-11 09:05:23,529 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:23,530 INFO L376 BasicCegarLoop]: trace histogram [13, 12, 12, 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] [2018-09-11 09:05:23,530 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:23,530 INFO L82 PathProgramCache]: Analyzing trace with hash 486144623, now seen corresponding path program 1 times [2018-09-11 09:05:23,530 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:23,530 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 84 with the following transitions: [2018-09-11 09:05:23,531 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [37], [40], [43], [48], [53], [58], [61], [79], [80], [81], [83], [84], [85], [86], [87], [88], [89], [90], [91], [92], [93], [94], [95], [96], [97], [98], [99], [100], [101], [102], [103], [104], [105], [106] [2018-09-11 09:05:23,533 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:23,533 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:23,691 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:23,692 INFO L272 AbstractInterpreter]: Visited 44 different actions 568 times. Merged at 20 different actions 120 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 13 variables. [2018-09-11 09:05:23,727 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:23,805 INFO L232 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 75.58% of their original sizes. [2018-09-11 09:05:23,806 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:24,258 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:24,258 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:24,258 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-11 09:05:24,259 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:24,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-11 09:05:24,259 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-11 09:05:24,259 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-09-11 09:05:24,260 INFO L87 Difference]: Start difference. First operand 362 states and 557 transitions. Second operand 16 states. [2018-09-11 09:05:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:29,775 INFO L93 Difference]: Finished difference Result 584 states and 916 transitions. [2018-09-11 09:05:29,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-11 09:05:29,776 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 83 [2018-09-11 09:05:29,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:29,781 INFO L225 Difference]: With dead ends: 584 [2018-09-11 09:05:29,781 INFO L226 Difference]: Without dead ends: 582 [2018-09-11 09:05:29,788 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 98 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=236, Invalid=694, Unknown=0, NotChecked=0, Total=930 [2018-09-11 09:05:29,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2018-09-11 09:05:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 463. [2018-09-11 09:05:29,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2018-09-11 09:05:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 717 transitions. [2018-09-11 09:05:29,992 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 717 transitions. Word has length 83 [2018-09-11 09:05:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:29,993 INFO L480 AbstractCegarLoop]: Abstraction has 463 states and 717 transitions. [2018-09-11 09:05:29,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-11 09:05:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 717 transitions. [2018-09-11 09:05:29,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-09-11 09:05:29,996 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:29,996 INFO L376 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 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] [2018-09-11 09:05:29,996 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:29,996 INFO L82 PathProgramCache]: Analyzing trace with hash 95102188, now seen corresponding path program 1 times [2018-09-11 09:05:29,997 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:29,997 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 87 with the following transitions: [2018-09-11 09:05:29,997 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [35], [37], [40], [43], [48], [53], [63], [69], [79], [80], [81], [83], [84], [85], [86], [87], [88], [89], [90], [91], [92], [93], [94], [95], [96], [97], [98], [99], [107], [108], [109], [110], [111], [112], [113], [114] [2018-09-11 09:05:29,999 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:29,999 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:30,017 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:30,017 INFO L272 AbstractInterpreter]: Visited 46 different actions 99 times. Merged at 4 different actions 4 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 12 variables. [2018-09-11 09:05:30,057 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:30,133 INFO L232 lantSequenceWeakener]: Weakened 54 states. On average, predicates are now at 63.83% of their original sizes. [2018-09-11 09:05:30,133 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:30,651 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:30,652 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:30,652 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-11 09:05:30,652 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:30,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-11 09:05:30,653 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-11 09:05:30,653 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-11 09:05:30,654 INFO L87 Difference]: Start difference. First operand 463 states and 717 transitions. Second operand 15 states. [2018-09-11 09:05:32,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:32,050 INFO L93 Difference]: Finished difference Result 595 states and 919 transitions. [2018-09-11 09:05:32,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 09:05:32,051 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 86 [2018-09-11 09:05:32,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:32,053 INFO L225 Difference]: With dead ends: 595 [2018-09-11 09:05:32,053 INFO L226 Difference]: Without dead ends: 300 [2018-09-11 09:05:32,055 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2018-09-11 09:05:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-09-11 09:05:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 296. [2018-09-11 09:05:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-09-11 09:05:32,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 450 transitions. [2018-09-11 09:05:32,167 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 450 transitions. Word has length 86 [2018-09-11 09:05:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:32,167 INFO L480 AbstractCegarLoop]: Abstraction has 296 states and 450 transitions. [2018-09-11 09:05:32,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-11 09:05:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 450 transitions. [2018-09-11 09:05:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-09-11 09:05:32,169 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:32,169 INFO L376 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 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] [2018-09-11 09:05:32,169 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:32,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1363164487, now seen corresponding path program 1 times [2018-09-11 09:05:32,170 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:32,170 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 88 with the following transitions: [2018-09-11 09:05:32,170 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [32], [35], [37], [40], [43], [48], [53], [58], [61], [79], [80], [81], [83], [84], [85], [86], [87], [88], [89], [90], [91], [92], [93], [94], [95], [96], [97], [98], [99], [100], [101], [102], [103], [104], [105], [106] [2018-09-11 09:05:32,172 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:32,172 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:32,345 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:32,347 INFO L272 AbstractInterpreter]: Visited 45 different actions 904 times. Merged at 23 different actions 215 times. Widened at 2 different actions 11 times. Found 12 fixpoints after 4 different actions. Largest state had 13 variables. [2018-09-11 09:05:32,375 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:32,440 INFO L232 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 71.06% of their original sizes. [2018-09-11 09:05:32,440 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:32,887 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:32,887 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:32,887 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-11 09:05:32,887 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:32,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-11 09:05:32,888 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-11 09:05:32,889 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2018-09-11 09:05:32,889 INFO L87 Difference]: Start difference. First operand 296 states and 450 transitions. Second operand 17 states. [2018-09-11 09:05:37,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:37,320 INFO L93 Difference]: Finished difference Result 581 states and 921 transitions. [2018-09-11 09:05:37,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-11 09:05:37,320 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 87 [2018-09-11 09:05:37,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:37,321 INFO L225 Difference]: With dead ends: 581 [2018-09-11 09:05:37,321 INFO L226 Difference]: Without dead ends: 0 [2018-09-11 09:05:37,323 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 96 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=201, Invalid=449, Unknown=0, NotChecked=0, Total=650 [2018-09-11 09:05:37,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-11 09:05:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-11 09:05:37,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-11 09:05:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-11 09:05:37,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2018-09-11 09:05:37,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:37,325 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-11 09:05:37,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-11 09:05:37,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-11 09:05:37,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-11 09:05:37,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-11 09:05:38,262 WARN L175 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 143 [2018-09-11 09:05:38,366 WARN L175 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 117 [2018-09-11 09:05:38,485 WARN L175 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 106 [2018-09-11 09:05:39,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:39,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:39,282 WARN L175 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 143 [2018-09-11 09:05:40,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:40,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:40,297 WARN L175 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 143 [2018-09-11 09:05:40,402 WARN L175 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 117 [2018-09-11 09:05:40,509 WARN L175 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 117 [2018-09-11 09:05:40,660 WARN L175 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 117 [2018-09-11 09:05:40,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:40,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:41,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:41,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:41,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 09:05:41,587 WARN L175 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 295 [2018-09-11 09:05:41,721 WARN L175 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 117 [2018-09-11 09:05:42,079 WARN L175 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 294 [2018-09-11 09:05:42,884 WARN L175 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 143 [2018-09-11 09:05:44,711 WARN L175 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 143 DAG size of output: 28 [2018-09-11 09:05:45,586 WARN L175 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 27 [2018-09-11 09:05:46,569 WARN L175 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 26 [2018-09-11 09:05:47,801 WARN L175 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 143 DAG size of output: 28 [2018-09-11 09:05:47,930 WARN L175 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 27 [2018-09-11 09:05:48,101 WARN L175 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 26 [2018-09-11 09:05:48,329 WARN L175 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 28 [2018-09-11 09:05:48,457 WARN L175 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 27 [2018-09-11 09:05:48,602 WARN L175 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 27 [2018-09-11 09:05:48,732 WARN L175 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 25 [2018-09-11 09:05:48,858 WARN L175 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 27 [2018-09-11 09:05:48,987 WARN L175 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 25 [2018-09-11 09:05:50,643 WARN L175 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 289 DAG size of output: 37 [2018-09-11 09:05:50,790 WARN L175 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 27 [2018-09-11 09:05:51,560 WARN L175 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 32 [2018-09-11 09:05:51,709 WARN L175 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 26 [2018-09-11 09:05:51,942 WARN L175 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 28 [2018-09-11 09:05:52,075 WARN L175 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 26 [2018-09-11 09:05:52,078 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-11 09:05:52,078 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-11 09:05:52,078 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-11 09:05:52,079 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-11 09:05:52,079 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-11 09:05:52,079 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-11 09:05:52,079 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-11 09:05:52,079 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-11 09:05:52,079 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-11 09:05:52,079 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-11 09:05:52,079 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-11 09:05:52,079 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-11 09:05:52,079 INFO L422 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 2) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,080 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 53) no Hoare annotation was computed. [2018-09-11 09:05:52,080 INFO L422 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 2) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,080 INFO L422 ceAbstractionStarter]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 2) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,080 INFO L422 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,081 INFO L422 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 2 (* 2 main_~i~0)) (<= (+ main_~j~0 4) main_~bufsize~0) (<= .cse0 main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 2 (* 2 main_~j~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,081 INFO L422 ceAbstractionStarter]: At program point L32-1(line 32) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 2 (* 2 main_~i~0)) (<= (+ main_~j~0 4) main_~bufsize~0) (<= .cse0 main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 2 (* 2 main_~j~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,081 INFO L422 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 2) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,081 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-11 09:05:52,081 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 51) no Hoare annotation was computed. [2018-09-11 09:05:52,081 INFO L422 ceAbstractionStarter]: At program point L20-3(lines 20 51) the Hoare annotation is: (let ((.cse5 (+ main_~limit~0 4))) (let ((.cse0 (<= .cse5 main_~bufsize~0)) (.cse2 (<= main_~bufsize~0 .cse5)) (.cse3 (<= (* 2 main_~limit~0) 4294967286)) (.cse4 (<= 0 (+ main_~bufsize~0 main_~limit~0 4)))) (or (let ((.cse1 (* 2 main_~j~0))) (and .cse0 (<= (* 2 main_~len~0) 4294967294) (<= 0 (* 2 main_~i~0)) (<= .cse1 4294967294) (<= main_~i~0 (+ main_~limit~0 2147483647)) (<= 0 .cse1) .cse2 (<= main_~i~0 main_~len~0) .cse3 .cse4)) (and .cse0 .cse2 (<= main_~i~0 (+ main_~len~0 2147483648)) (<= main_~len~0 (+ main_~i~0 2147483647)) .cse3 .cse4 (= main_~i~0 0))))) [2018-09-11 09:05:52,081 INFO L426 ceAbstractionStarter]: For program point L20-4(lines 20 51) no Hoare annotation was computed. [2018-09-11 09:05:52,081 INFO L422 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,082 INFO L422 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 2 (* 2 main_~i~0)) (<= (+ main_~j~0 4) main_~bufsize~0) (<= .cse0 main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 2 (* 2 main_~j~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,082 INFO L426 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-09-11 09:05:52,082 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-11 09:05:52,082 INFO L426 ceAbstractionStarter]: For program point L21-1(lines 21 50) no Hoare annotation was computed. [2018-09-11 09:05:52,082 INFO L422 ceAbstractionStarter]: At program point L21-3(lines 21 50) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0)) (.cse1 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= .cse0 4294967294) (<= main_~i~0 main_~len~0) (<= 0 .cse0) (<= .cse1 main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= 0 (+ main_~bufsize~0 main_~limit~0 4)) (<= 1 (+ main_~i~0 main_~len~0)) (<= main_~i~0 (+ main_~limit~0 2147483647)) (<= main_~bufsize~0 .cse1))) [2018-09-11 09:05:52,082 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-11 09:05:52,082 INFO L426 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-09-11 09:05:52,082 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 53) no Hoare annotation was computed. [2018-09-11 09:05:52,082 INFO L422 ceAbstractionStarter]: At program point L42(lines 22 49) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,083 INFO L422 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= 4 (* 2 main_~j~0)) (<= main_~i~0 main_~len~0) (<= .cse0 main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 4 (* 2 main_~i~0)) (<= main_~j~0 (+ main_~limit~0 1)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,083 INFO L422 ceAbstractionStarter]: At program point L38-1(line 38) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= 4 (* 2 main_~j~0)) (<= main_~i~0 main_~len~0) (<= .cse0 main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 4 (* 2 main_~i~0)) (<= main_~j~0 (+ main_~limit~0 1)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,083 INFO L422 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 2 (* 2 main_~i~0)) (<= (+ main_~j~0 4) main_~bufsize~0) (<= .cse0 main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 2 (* 2 main_~j~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,083 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 53) the Hoare annotation is: true [2018-09-11 09:05:52,083 INFO L422 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 2) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,083 INFO L422 ceAbstractionStarter]: At program point L26-1(line 26) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 2) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,084 INFO L426 ceAbstractionStarter]: For program point L22(lines 22 49) no Hoare annotation was computed. [2018-09-11 09:05:52,084 INFO L422 ceAbstractionStarter]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (+ main_~limit~0 4))) (and (<= (* 2 main_~len~0) 4294967294) (<= (+ main_~i~0 1) main_~len~0) (<= 0 (* 2 main_~j~0)) (<= .cse0 main_~bufsize~0) (<= (+ main_~j~0 5) main_~bufsize~0) (<= (* 2 main_~limit~0) 4294967286) (<= 0 (* 2 main_~i~0)) (<= main_~bufsize~0 .cse0))) [2018-09-11 09:05:52,084 INFO L426 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-09-11 09:05:52,084 INFO L426 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-09-11 09:05:52,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 09:05:52 BoogieIcfgContainer [2018-09-11 09:05:52,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 09:05:52,097 INFO L168 Benchmark]: Toolchain (without parser) took 51196.93 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-11 09:05:52,098 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-09-11 09:05:52,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.64 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. [2018-09-11 09:05:52,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.28 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. [2018-09-11 09:05:52,100 INFO L168 Benchmark]: Boogie Preprocessor took 38.23 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. [2018-09-11 09:05:52,100 INFO L168 Benchmark]: RCFGBuilder took 747.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -785.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:52,101 INFO L168 Benchmark]: TraceAbstraction took 50125.67 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 541.6 MB). Free memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: -399.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-11 09:05:52,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 255.64 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 24.28 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 38.23 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 747.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -785.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50125.67 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 541.6 MB). Free memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: -399.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((((((limit + 4 <= bufsize && 2 * len <= 4294967294) && 0 <= 2 * i) && 2 * j <= 4294967294) && i <= limit + 2147483647) && 0 <= 2 * j) && bufsize <= limit + 4) && i <= len) && 2 * limit <= 4294967286) && 0 <= bufsize + limit + 4) || ((((((limit + 4 <= bufsize && bufsize <= limit + 4) && i <= len + 2147483648) && len <= i + 2147483647) && 2 * limit <= 4294967286) && 0 <= bufsize + limit + 4) && i == 0) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((((((((2 * len <= 4294967294 && 2 * j <= 4294967294) && i <= len) && 0 <= 2 * j) && limit + 4 <= bufsize) && 2 * limit <= 4294967286) && 0 <= 2 * i) && 0 <= bufsize + limit + 4) && 1 <= i + len) && i <= limit + 2147483647) && bufsize <= limit + 4 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((2 * len <= 4294967294 && i + 1 <= len) && 0 <= 2 * j) && limit + 4 <= bufsize) && j + 5 <= bufsize) && 2 * limit <= 4294967286) && 0 <= 2 * i) && bufsize <= limit + 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 44 locations, 1 error locations. SAFE Result, 50.0s OverallTime, 12 OverallIterations, 13 TraceHistogramMax, 26.5s AutomataDifference, 0.0s DeadEndRemovalTime, 14.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 838 SDtfs, 779 SDslu, 4283 SDs, 0 SdLazy, 5332 SolverSat, 1717 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.6s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 762 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.7s AbstIntTime, 12 AbstIntIterations, 12 AbstIntStrong, 0.9007317107900196 AbsIntWeakeningRatio, 0.48833819241982507 AbsIntAvgWeakeningVarsNumRemoved, 6.701166180758017 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 244 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 484 PreInvPairs, 779 NumberOfFragments, 798 HoareAnnotationTreeSize, 484 FomulaSimplifications, 2309455 FormulaSimplificationTreeSizeReduction, 5.6s HoareSimplificationTime, 23 FomulaSimplificationsInter, 29953 FormulaSimplificationTreeSizeReductionInter, 9.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/SpamAssassin-loop_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_09-05-52-121.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/SpamAssassin-loop_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_09-05-52-121.csv Received shutdown request...