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/loops/lu.cmp_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 09:22:43,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 09:22:43,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 09:22:43,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 09:22:43,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 09:22:43,266 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 09:22:43,267 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 09:22:43,269 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 09:22:43,270 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 09:22:43,271 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 09:22:43,272 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 09:22:43,273 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 09:22:43,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 09:22:43,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 09:22:43,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 09:22:43,277 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 09:22:43,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 09:22:43,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 09:22:43,282 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 09:22:43,284 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 09:22:43,285 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 09:22:43,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 09:22:43,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 09:22:43,290 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 09:22:43,290 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 09:22:43,291 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 09:22:43,292 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 09:22:43,293 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 09:22:43,294 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 09:22:43,295 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 09:22:43,295 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 09:22:43,296 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 09:22:43,299 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 [2018-09-15 09:22:43,315 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 09:22:43,316 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 09:22:43,316 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 09:22:43,317 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 09:22:43,317 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 09:22:43,317 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 09:22:43,317 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 09:22:43,317 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 09:22:43,318 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 09:22:43,318 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 09:22:43,318 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 09:22:43,319 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 09:22:43,319 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 09:22:43,319 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 09:22:43,319 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 09:22:43,319 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 09:22:43,320 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 09:22:43,320 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 09:22:43,320 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 09:22:43,320 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 09:22:43,320 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 09:22:43,321 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 09:22:43,321 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 09:22:43,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:22:43,321 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 09:22:43,321 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 09:22:43,322 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 09:22:43,322 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 09:22:43,322 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 09:22:43,322 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 09:22:43,322 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 09:22:43,323 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 09:22:43,323 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 09:22:43,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 09:22:43,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 09:22:43,386 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 09:22:43,388 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 09:22:43,389 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 09:22:43,389 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-09-15 09:22:43,774 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2aa3804/562190f4a74140a48ef5c775dbb88a81/FLAG2e619814a [2018-09-15 09:22:44,014 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 09:22:44,015 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-09-15 09:22:44,023 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2aa3804/562190f4a74140a48ef5c775dbb88a81/FLAG2e619814a [2018-09-15 09:22:44,038 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2aa3804/562190f4a74140a48ef5c775dbb88a81 [2018-09-15 09:22:44,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 09:22:44,053 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 09:22:44,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 09:22:44,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 09:22:44,062 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 09:22:44,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c827c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44, skipping insertion in model container [2018-09-15 09:22:44,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,079 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 09:22:44,310 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:22:44,475 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 09:22:44,521 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:22:44,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44 WrapperNode [2018-09-15 09:22:44,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 09:22:44,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 09:22:44,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 09:22:44,642 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 09:22:44,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 09:22:44,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 09:22:44,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 09:22:44,721 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 09:22:44,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... [2018-09-15 09:22:44,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 09:22:44,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 09:22:44,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 09:22:44,884 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 09:22:44,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:22:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-09-15 09:22:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-09-15 09:22:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 09:22:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 09:22:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-09-15 09:22:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-09-15 09:22:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 09:22:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 09:22:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 09:22:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 09:22:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 09:22:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 09:22:57,577 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 09:22:57,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:22:57 BoogieIcfgContainer [2018-09-15 09:22:57,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 09:22:57,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 09:22:57,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 09:22:57,582 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 09:22:57,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:22:44" (1/3) ... [2018-09-15 09:22:57,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd541a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:22:57, skipping insertion in model container [2018-09-15 09:22:57,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:44" (2/3) ... [2018-09-15 09:22:57,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd541a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:22:57, skipping insertion in model container [2018-09-15 09:22:57,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:22:57" (3/3) ... [2018-09-15 09:22:57,586 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2018-09-15 09:22:57,595 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 09:22:57,602 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 09:22:57,650 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 09:22:57,651 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 09:22:57,651 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 09:22:57,651 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 09:22:57,652 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 09:22:57,652 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 09:22:57,653 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 09:22:57,653 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 09:22:57,653 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 09:22:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-09-15 09:22:57,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 09:22:57,681 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:22:57,683 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:22:57,684 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:22:57,690 INFO L82 PathProgramCache]: Analyzing trace with hash 765892228, now seen corresponding path program 1 times [2018-09-15 09:22:57,693 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:22:57,694 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 09:22:57,696 INFO L202 CegarAbsIntRunner]: [150], [151], [164], [168], [173], [193], [205], [208], [210], [218], [219], [220], [222] [2018-09-15 09:22:57,789 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:22:57,790 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:22:57,954 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:22:57,956 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 09:22:58,003 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:22:58,105 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 61.11% of their original sizes. [2018-09-15 09:22:58,106 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:22:58,194 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:22:58,196 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:22:58,196 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 09:22:58,196 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:22:58,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 09:22:58,209 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 09:22:58,210 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 09:22:58,213 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 4 states. [2018-09-15 09:22:58,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:22:58,596 INFO L93 Difference]: Finished difference Result 154 states and 217 transitions. [2018-09-15 09:22:58,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 09:22:58,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-09-15 09:22:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:22:58,608 INFO L225 Difference]: With dead ends: 154 [2018-09-15 09:22:58,609 INFO L226 Difference]: Without dead ends: 32 [2018-09-15 09:22:58,614 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 09:22:58,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-09-15 09:22:58,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2018-09-15 09:22:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-15 09:22:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-09-15 09:22:58,660 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2018-09-15 09:22:58,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:22:58,660 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-09-15 09:22:58,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 09:22:58,661 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-09-15 09:22:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 09:22:58,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:22:58,662 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:22:58,662 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:22:58,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1771472002, now seen corresponding path program 1 times [2018-09-15 09:22:58,662 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:22:58,663 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 09:22:58,663 INFO L202 CegarAbsIntRunner]: [150], [151], [164], [168], [173], [177], [180], [205], [208], [210], [218], [219], [220], [222] [2018-09-15 09:22:58,687 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:22:58,687 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:22:58,705 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:22:58,705 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 09:22:58,743 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:22:58,777 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 09:22:58,778 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:22:58,862 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:22:58,862 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:22:58,862 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 09:22:58,862 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:22:58,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 09:22:58,864 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 09:22:58,864 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 09:22:58,864 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 4 states. [2018-09-15 09:22:59,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:22:59,256 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-09-15 09:22:59,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 09:22:59,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-15 09:22:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:22:59,259 INFO L225 Difference]: With dead ends: 53 [2018-09-15 09:22:59,259 INFO L226 Difference]: Without dead ends: 37 [2018-09-15 09:22:59,261 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 09:22:59,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-09-15 09:22:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2018-09-15 09:22:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-09-15 09:22:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-09-15 09:22:59,273 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 14 [2018-09-15 09:22:59,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:22:59,273 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-09-15 09:22:59,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 09:22:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-09-15 09:22:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-15 09:22:59,276 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:22:59,276 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:22:59,276 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:22:59,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1929070916, now seen corresponding path program 1 times [2018-09-15 09:22:59,277 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:22:59,277 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-15 09:22:59,277 INFO L202 CegarAbsIntRunner]: [150], [151], [164], [168], [173], [177], [180], [182], [185], [189], [191], [205], [208], [210], [218], [219], [220], [222] [2018-09-15 09:22:59,305 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:22:59,305 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:22:59,345 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:22:59,346 INFO L272 AbstractInterpreter]: Visited 14 different actions 18 times. Merged at 3 different actions 3 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 14 variables. [2018-09-15 09:22:59,388 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:22:59,451 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 48.89% of their original sizes. [2018-09-15 09:22:59,452 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:22:59,615 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:22:59,615 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:22:59,616 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 09:22:59,616 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:22:59,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 09:22:59,619 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 09:22:59,619 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-15 09:22:59,620 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 5 states. [2018-09-15 09:22:59,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:22:59,896 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2018-09-15 09:22:59,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-15 09:22:59,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-09-15 09:22:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:22:59,900 INFO L225 Difference]: With dead ends: 58 [2018-09-15 09:22:59,901 INFO L226 Difference]: Without dead ends: 42 [2018-09-15 09:22:59,901 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-15 09:22:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-15 09:22:59,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-09-15 09:22:59,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-15 09:22:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-09-15 09:22:59,919 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 19 [2018-09-15 09:22:59,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:22:59,920 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-09-15 09:22:59,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 09:22:59,920 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-09-15 09:22:59,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-15 09:22:59,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:22:59,921 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:22:59,921 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:22:59,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1009235652, now seen corresponding path program 1 times [2018-09-15 09:22:59,922 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:22:59,922 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-09-15 09:22:59,922 INFO L202 CegarAbsIntRunner]: [150], [151], [164], [168], [173], [177], [180], [182], [185], [187], [189], [191], [205], [208], [210], [218], [219], [220], [222] [2018-09-15 09:22:59,938 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:22:59,938 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:00,061 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:00,061 INFO L272 AbstractInterpreter]: Visited 18 different actions 57 times. Merged at 6 different actions 28 times. Widened at 1 different actions 2 times. Found 6 fixpoints after 3 different actions. Largest state had 14 variables. [2018-09-15 09:23:00,099 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:00,200 INFO L232 lantSequenceWeakener]: Weakened 16 states. On average, predicates are now at 44.38% of their original sizes. [2018-09-15 09:23:00,200 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:00,615 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:00,615 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:00,615 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-15 09:23:00,615 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:00,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-15 09:23:00,616 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-15 09:23:00,616 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-15 09:23:00,617 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 8 states. [2018-09-15 09:23:00,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:00,905 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2018-09-15 09:23:00,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 09:23:00,905 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2018-09-15 09:23:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:00,906 INFO L225 Difference]: With dead ends: 45 [2018-09-15 09:23:00,906 INFO L226 Difference]: Without dead ends: 43 [2018-09-15 09:23:00,907 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-15 09:23:00,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-15 09:23:00,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-09-15 09:23:00,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-15 09:23:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-09-15 09:23:00,915 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 24 [2018-09-15 09:23:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:00,916 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-09-15 09:23:00,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-15 09:23:00,916 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-09-15 09:23:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-15 09:23:00,918 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:00,918 INFO L376 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:00,918 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:00,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2784918, now seen corresponding path program 1 times [2018-09-15 09:23:00,919 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:00,919 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-09-15 09:23:00,919 INFO L202 CegarAbsIntRunner]: [150], [151], [164], [168], [173], [177], [180], [182], [185], [187], [189], [191], [196], [198], [205], [208], [210], [213], [215], [218], [219], [220], [222], [223] [2018-09-15 09:23:00,928 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:00,928 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:01,136 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:01,136 INFO L272 AbstractInterpreter]: Visited 23 different actions 184 times. Merged at 12 different actions 105 times. Widened at 3 different actions 15 times. Found 22 fixpoints after 6 different actions. Largest state had 15 variables. [2018-09-15 09:23:01,151 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:01,216 INFO L232 lantSequenceWeakener]: Weakened 26 states. On average, predicates are now at 50.77% of their original sizes. [2018-09-15 09:23:01,217 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:01,881 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:01,881 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:01,882 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-15 09:23:01,882 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:01,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-15 09:23:01,883 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-15 09:23:01,883 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-15 09:23:01,884 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 9 states. [2018-09-15 09:23:02,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:02,004 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-09-15 09:23:02,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-15 09:23:02,006 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-15 09:23:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:02,007 INFO L225 Difference]: With dead ends: 57 [2018-09-15 09:23:02,007 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 09:23:02,008 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-09-15 09:23:02,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 09:23:02,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 09:23:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 09:23:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 09:23:02,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-09-15 09:23:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:02,009 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 09:23:02,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-15 09:23:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 09:23:02,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 09:23:02,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 09:23:02,155 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2018-09-15 09:23:02,425 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 17 [2018-09-15 09:23:02,534 INFO L426 ceAbstractionStarter]: For program point L44-1(lines 44 62) no Hoare annotation was computed. [2018-09-15 09:23:02,535 INFO L426 ceAbstractionStarter]: For program point L44-3(lines 44 62) no Hoare annotation was computed. [2018-09-15 09:23:02,535 INFO L429 ceAbstractionStarter]: At program point L44-4(lines 44 62) the Hoare annotation is: true [2018-09-15 09:23:02,535 INFO L426 ceAbstractionStarter]: For program point L44-5(lines 44 62) no Hoare annotation was computed. [2018-09-15 09:23:02,535 INFO L426 ceAbstractionStarter]: For program point ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-09-15 09:23:02,535 INFO L429 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-09-15 09:23:02,536 INFO L426 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-09-15 09:23:02,536 INFO L429 ceAbstractionStarter]: At program point ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-09-15 09:23:02,536 INFO L426 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-09-15 09:23:02,536 INFO L426 ceAbstractionStarter]: For program point L55-3(lines 55 61) no Hoare annotation was computed. [2018-09-15 09:23:02,536 INFO L429 ceAbstractionStarter]: At program point L55-4(lines 55 61) the Hoare annotation is: true [2018-09-15 09:23:02,536 INFO L426 ceAbstractionStarter]: For program point L47-1(lines 47 54) no Hoare annotation was computed. [2018-09-15 09:23:02,536 INFO L426 ceAbstractionStarter]: For program point L47-3(lines 47 54) no Hoare annotation was computed. [2018-09-15 09:23:02,537 INFO L429 ceAbstractionStarter]: At program point L47-4(lines 47 54) the Hoare annotation is: true [2018-09-15 09:23:02,537 INFO L426 ceAbstractionStarter]: For program point L47-5(lines 47 54) no Hoare annotation was computed. [2018-09-15 09:23:02,537 INFO L426 ceAbstractionStarter]: For program point ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-09-15 09:23:02,537 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 72 78) no Hoare annotation was computed. [2018-09-15 09:23:02,537 INFO L426 ceAbstractionStarter]: For program point L72-3(lines 72 78) no Hoare annotation was computed. [2018-09-15 09:23:02,537 INFO L429 ceAbstractionStarter]: At program point L72-4(lines 72 78) the Hoare annotation is: true [2018-09-15 09:23:02,537 INFO L426 ceAbstractionStarter]: For program point L72-5(lines 72 78) no Hoare annotation was computed. [2018-09-15 09:23:02,537 INFO L426 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-09-15 09:23:02,538 INFO L426 ceAbstractionStarter]: For program point L64-3(lines 64 70) no Hoare annotation was computed. [2018-09-15 09:23:02,538 INFO L429 ceAbstractionStarter]: At program point L64-4(lines 64 70) the Hoare annotation is: true [2018-09-15 09:23:02,538 INFO L426 ceAbstractionStarter]: For program point L64-5(lines 64 70) no Hoare annotation was computed. [2018-09-15 09:23:02,538 INFO L426 ceAbstractionStarter]: For program point L58-1(lines 58 59) no Hoare annotation was computed. [2018-09-15 09:23:02,538 INFO L426 ceAbstractionStarter]: For program point L58-3(lines 58 59) no Hoare annotation was computed. [2018-09-15 09:23:02,538 INFO L429 ceAbstractionStarter]: At program point L58-4(lines 58 59) the Hoare annotation is: true [2018-09-15 09:23:02,538 INFO L426 ceAbstractionStarter]: For program point L58-5(lines 58 59) no Hoare annotation was computed. [2018-09-15 09:23:02,538 INFO L426 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-09-15 09:23:02,539 INFO L426 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-09-15 09:23:02,539 INFO L426 ceAbstractionStarter]: For program point L75-1(lines 75 76) no Hoare annotation was computed. [2018-09-15 09:23:02,539 INFO L426 ceAbstractionStarter]: For program point L75-3(lines 75 76) no Hoare annotation was computed. [2018-09-15 09:23:02,539 INFO L429 ceAbstractionStarter]: At program point L75-4(lines 75 76) the Hoare annotation is: true [2018-09-15 09:23:02,539 INFO L426 ceAbstractionStarter]: For program point L75-5(lines 75 76) no Hoare annotation was computed. [2018-09-15 09:23:02,539 INFO L426 ceAbstractionStarter]: For program point L67-1(lines 67 68) no Hoare annotation was computed. [2018-09-15 09:23:02,539 INFO L426 ceAbstractionStarter]: For program point L67-3(lines 67 68) no Hoare annotation was computed. [2018-09-15 09:23:02,540 INFO L429 ceAbstractionStarter]: At program point L67-4(lines 67 68) the Hoare annotation is: true [2018-09-15 09:23:02,540 INFO L426 ceAbstractionStarter]: For program point L67-5(lines 67 68) no Hoare annotation was computed. [2018-09-15 09:23:02,540 INFO L426 ceAbstractionStarter]: For program point L51-1(lines 51 52) no Hoare annotation was computed. [2018-09-15 09:23:02,540 INFO L426 ceAbstractionStarter]: For program point L51-3(lines 51 52) no Hoare annotation was computed. [2018-09-15 09:23:02,540 INFO L429 ceAbstractionStarter]: At program point L51-4(lines 51 52) the Hoare annotation is: true [2018-09-15 09:23:02,540 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-15 09:23:02,540 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-15 09:23:02,540 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-15 09:23:02,541 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 09:23:02,541 INFO L426 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-09-15 09:23:02,541 INFO L426 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-09-15 09:23:02,541 INFO L426 ceAbstractionStarter]: For program point fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-09-15 09:23:02,541 INFO L429 ceAbstractionStarter]: At program point fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-09-15 09:23:02,541 INFO L426 ceAbstractionStarter]: For program point fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-09-15 09:23:02,541 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 09:23:02,542 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-15 09:23:02,542 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 09:23:02,542 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 09:23:02,542 INFO L426 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-09-15 09:23:02,542 INFO L426 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-09-15 09:23:02,542 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-09-15 09:23:02,542 INFO L426 ceAbstractionStarter]: For program point L23-1(lines 23 34) no Hoare annotation was computed. [2018-09-15 09:23:02,543 INFO L426 ceAbstractionStarter]: For program point L23-3(lines 23 34) no Hoare annotation was computed. [2018-09-15 09:23:02,543 INFO L422 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: (and (<= 0 (* 2 main_~i~0)) (<= (+ main_~i~0 main_~n~0) 11) (= main_~n~0 5)) [2018-09-15 09:23:02,543 INFO L429 ceAbstractionStarter]: At program point L23-5(lines 23 34) the Hoare annotation is: true [2018-09-15 09:23:02,543 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-09-15 09:23:02,543 INFO L426 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-09-15 09:23:02,543 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: true [2018-09-15 09:23:02,544 INFO L426 ceAbstractionStarter]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2018-09-15 09:23:02,544 INFO L426 ceAbstractionStarter]: For program point L26-3(lines 26 31) no Hoare annotation was computed. [2018-09-15 09:23:02,544 INFO L422 ceAbstractionStarter]: At program point L26-4(lines 26 31) the Hoare annotation is: (and (<= 5 (+ main_~i~0 main_~n~0)) (<= main_~j~0 (+ main_~n~0 1)) (<= (* 2 main_~i~0) 10) (<= main_~n~0 (+ main_~j~0 5)) (= main_~n~0 5)) [2018-09-15 09:23:02,544 INFO L422 ceAbstractionStarter]: At program point L26-5(lines 26 31) the Hoare annotation is: (and (<= 5 (+ main_~i~0 main_~n~0)) (<= main_~j~0 (+ main_~n~0 1)) (<= (* 2 main_~i~0) 10) (<= main_~n~0 (+ main_~j~0 5)) (= main_~n~0 5)) [2018-09-15 09:23:02,544 INFO L426 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-09-15 09:23:02,544 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 09:23:02,545 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 09:23:02,545 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 09:23:02,545 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 09:23:02,545 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 09:23:02,545 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 09:23:02,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:23:02 BoogieIcfgContainer [2018-09-15 09:23:02,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 09:23:02,557 INFO L168 Benchmark]: Toolchain (without parser) took 18506.56 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -238.6 MB). Peak memory consumption was 976.2 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:02,558 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:02,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.46 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:02,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:02,560 INFO L168 Benchmark]: Boogie Preprocessor took 162.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:02,561 INFO L168 Benchmark]: RCFGBuilder took 12694.49 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -577.6 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-15 09:23:02,562 INFO L168 Benchmark]: TraceAbstraction took 4976.85 ms. Allocated memory is still 2.7 GB. Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 284.0 MB). Peak memory consumption was 284.0 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:02,566 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 586.46 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.66 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 162.85 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. * RCFGBuilder took 12694.49 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -577.6 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 4976.85 ms. Allocated memory is still 2.7 GB. Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 284.0 MB). Peak memory consumption was 284.0 MB. 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: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((5 <= i + n && j <= n + 1) && 2 * i <= 10) && n <= j + 5) && n == 5 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= 2 * i && i + n <= 11) && n == 5 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 75 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 143 SDtfs, 112 SDslu, 322 SDs, 0 SdLazy, 179 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9196492673992676 AbsIntWeakeningRatio, 0.7 AbsIntAvgWeakeningVarsNumRemoved, 14.28 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 38 PreInvPairs, 58 NumberOfFragments, 80 HoareAnnotationTreeSize, 38 FomulaSimplifications, 694 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 318 FormulaSimplificationTreeSizeReductionInter, 0.3s 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/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_09-23-02-582.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_09-23-02-582.csv Received shutdown request...