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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/psyco/psyco_security_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:26:39,315 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:26:39,317 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:26:39,329 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:26:39,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:26:39,331 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:26:39,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:26:39,334 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:26:39,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:26:39,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:26:39,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:26:39,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:26:39,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:26:39,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:26:39,341 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:26:39,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:26:39,343 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:26:39,345 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:26:39,347 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:26:39,349 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:26:39,350 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:26:39,351 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:26:39,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 19:26:39,354 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 19:26:39,354 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 19:26:39,355 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 19:26:39,356 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 19:26:39,357 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 19:26:39,358 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 19:26:39,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 19:26:39,360 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 19:26:39,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 19:26:39,361 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 19:26:39,361 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 19:26:39,362 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 19:26:39,363 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 19:26:39,363 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-11 19:26:39,379 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:26:39,379 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:26:39,380 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:26:39,380 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:26:39,380 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:26:39,381 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:26:39,381 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:26:39,381 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-11 19:26:39,381 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-11 19:26:39,381 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:26:39,382 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:26:39,382 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:26:39,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:26:39,383 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:26:39,383 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:26:39,383 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:26:39,383 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:26:39,384 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:26:39,384 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:26:39,384 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:26:39,384 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:26:39,384 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:26:39,385 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:26:39,385 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:26:39,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:26:39,385 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:26:39,385 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:26:39,386 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:26:39,386 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:26:39,386 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:26:39,386 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:26:39,388 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:26:39,388 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:26:39,388 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:26:39,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:26:39,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:26:39,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:26:39,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:26:39,476 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:26:39,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security_true-unreach-call_false-termination.c [2018-09-11 19:26:39,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6770a84cd/66acdf6b517f42d19a0e6aaf81ef7416/FLAGda29910dd [2018-09-11 19:26:40,029 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:26:40,030 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security_true-unreach-call_false-termination.c [2018-09-11 19:26:40,053 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6770a84cd/66acdf6b517f42d19a0e6aaf81ef7416/FLAGda29910dd [2018-09-11 19:26:40,073 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6770a84cd/66acdf6b517f42d19a0e6aaf81ef7416 [2018-09-11 19:26:40,084 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:26:40,088 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:26:40,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:26:40,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:26:40,096 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:26:40,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eddb9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40, skipping insertion in model container [2018-09-11 19:26:40,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,277 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:26:40,346 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:26:40,372 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:26:40,399 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:26:40,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40 WrapperNode [2018-09-11 19:26:40,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:26:40,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:26:40,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:26:40,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:26:40,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:26:40,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:26:40,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:26:40,479 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:26:40,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... [2018-09-11 19:26:40,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:26:40,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:26:40,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:26:40,552 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:26:40,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:26:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:26:40,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:26:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:26:40,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:26:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:26:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:26:41,543 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:26:41,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:26:41 BoogieIcfgContainer [2018-09-11 19:26:41,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:26:41,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:26:41,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:26:41,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:26:41,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:26:40" (1/3) ... [2018-09-11 19:26:41,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@897a980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:26:41, skipping insertion in model container [2018-09-11 19:26:41,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:26:40" (2/3) ... [2018-09-11 19:26:41,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@897a980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:26:41, skipping insertion in model container [2018-09-11 19:26:41,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:26:41" (3/3) ... [2018-09-11 19:26:41,553 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_security_true-unreach-call_false-termination.c [2018-09-11 19:26:41,563 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:26:41,573 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:26:41,624 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:26:41,625 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:26:41,625 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:26:41,625 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:26:41,625 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:26:41,625 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:26:41,626 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:26:41,626 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:26:41,626 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:26:41,645 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-09-11 19:26:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-11 19:26:41,652 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:26:41,653 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:26:41,654 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:26:41,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1921368221, now seen corresponding path program 1 times [2018-09-11 19:26:41,663 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:26:41,664 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-11 19:26:41,667 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [27], [373], [376], [377], [378] [2018-09-11 19:26:41,698 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 19:26:41,698 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:26:41,787 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:26:41,789 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 16 variables. [2018-09-11 19:26:41,828 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:26:41,883 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 97.86% of their original sizes. [2018-09-11 19:26:41,883 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:26:41,919 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:26:41,921 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:26:41,921 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-11 19:26:41,922 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:26:41,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-11 19:26:41,936 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-11 19:26:41,937 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:26:41,940 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2018-09-11 19:26:42,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:26:42,184 INFO L93 Difference]: Finished difference Result 163 states and 304 transitions. [2018-09-11 19:26:42,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-11 19:26:42,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-09-11 19:26:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:26:42,199 INFO L225 Difference]: With dead ends: 163 [2018-09-11 19:26:42,199 INFO L226 Difference]: Without dead ends: 81 [2018-09-11 19:26:42,203 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:26:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-11 19:26:42,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-11 19:26:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-11 19:26:42,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2018-09-11 19:26:42,251 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 13 [2018-09-11 19:26:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:26:42,252 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2018-09-11 19:26:42,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-11 19:26:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2018-09-11 19:26:42,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-11 19:26:42,253 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:26:42,253 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:26:42,254 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:26:42,254 INFO L82 PathProgramCache]: Analyzing trace with hash -304388480, now seen corresponding path program 1 times [2018-09-11 19:26:42,254 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:26:42,255 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-11 19:26:42,255 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [373], [376], [377], [378] [2018-09-11 19:26:42,256 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 19:26:42,256 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:26:42,263 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:26:42,264 INFO L272 AbstractInterpreter]: Visited 14 different actions 17 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-09-11 19:26:42,290 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:26:42,328 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 95.35% of their original sizes. [2018-09-11 19:26:42,328 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:26:42,438 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:26:42,439 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:26:42,439 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 19:26:42,439 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:26:42,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 19:26:42,440 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 19:26:42,440 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 19:26:42,441 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 6 states. [2018-09-11 19:26:42,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:26:42,913 INFO L93 Difference]: Finished difference Result 190 states and 274 transitions. [2018-09-11 19:26:42,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 19:26:42,914 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-09-11 19:26:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:26:42,917 INFO L225 Difference]: With dead ends: 190 [2018-09-11 19:26:42,917 INFO L226 Difference]: Without dead ends: 110 [2018-09-11 19:26:42,919 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-11 19:26:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-09-11 19:26:42,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 96. [2018-09-11 19:26:42,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-11 19:26:42,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2018-09-11 19:26:42,933 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 19 [2018-09-11 19:26:42,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:26:42,933 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2018-09-11 19:26:42,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 19:26:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2018-09-11 19:26:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-11 19:26:42,941 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:26:42,942 INFO L376 BasicCegarLoop]: trace histogram [3, 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 19:26:42,942 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:26:42,942 INFO L82 PathProgramCache]: Analyzing trace with hash -504951029, now seen corresponding path program 1 times [2018-09-11 19:26:42,943 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:26:42,943 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-09-11 19:26:42,943 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [86], [89], [92], [95], [100], [373], [376], [377], [378] [2018-09-11 19:26:42,946 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 19:26:42,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:26:42,966 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:26:42,966 INFO L272 AbstractInterpreter]: Visited 19 different actions 30 times. Merged at 7 different actions 8 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 18 variables. [2018-09-11 19:26:42,981 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:26:43,011 INFO L232 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 95.64% of their original sizes. [2018-09-11 19:26:43,011 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:26:43,162 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:26:43,166 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:26:43,166 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-11 19:26:43,167 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:26:43,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-11 19:26:43,167 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-11 19:26:43,168 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-11 19:26:43,168 INFO L87 Difference]: Start difference. First operand 96 states and 135 transitions. Second operand 7 states. [2018-09-11 19:26:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:26:43,942 INFO L93 Difference]: Finished difference Result 249 states and 357 transitions. [2018-09-11 19:26:43,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-11 19:26:43,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-09-11 19:26:43,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:26:43,952 INFO L225 Difference]: With dead ends: 249 [2018-09-11 19:26:43,952 INFO L226 Difference]: Without dead ends: 145 [2018-09-11 19:26:43,954 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:26:43,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-09-11 19:26:43,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 121. [2018-09-11 19:26:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-11 19:26:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 175 transitions. [2018-09-11 19:26:43,971 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 175 transitions. Word has length 26 [2018-09-11 19:26:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:26:43,971 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 175 transitions. [2018-09-11 19:26:43,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-11 19:26:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 175 transitions. [2018-09-11 19:26:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-11 19:26:43,973 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:26:43,973 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:26:43,974 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:26:43,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1172052595, now seen corresponding path program 1 times [2018-09-11 19:26:43,974 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:26:43,974 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-09-11 19:26:43,975 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [86], [89], [92], [95], [100], [105], [121], [124], [127], [130], [373], [376], [377], [378] [2018-09-11 19:26:43,976 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 19:26:43,976 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:26:43,988 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:26:43,988 INFO L272 AbstractInterpreter]: Visited 23 different actions 37 times. Merged at 10 different actions 11 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 19 variables. [2018-09-11 19:26:44,001 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:26:44,032 INFO L232 lantSequenceWeakener]: Weakened 26 states. On average, predicates are now at 94.78% of their original sizes. [2018-09-11 19:26:44,033 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:26:44,136 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:26:44,136 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:26:44,136 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-11 19:26:44,137 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:26:44,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-11 19:26:44,137 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-11 19:26:44,137 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:26:44,138 INFO L87 Difference]: Start difference. First operand 121 states and 175 transitions. Second operand 8 states. [2018-09-11 19:26:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:26:44,491 INFO L93 Difference]: Finished difference Result 250 states and 359 transitions. [2018-09-11 19:26:44,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 19:26:44,492 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-09-11 19:26:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:26:44,494 INFO L225 Difference]: With dead ends: 250 [2018-09-11 19:26:44,494 INFO L226 Difference]: Without dead ends: 144 [2018-09-11 19:26:44,495 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-11 19:26:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-09-11 19:26:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2018-09-11 19:26:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-09-11 19:26:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 167 transitions. [2018-09-11 19:26:44,507 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 167 transitions. Word has length 29 [2018-09-11 19:26:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:26:44,507 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 167 transitions. [2018-09-11 19:26:44,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-11 19:26:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 167 transitions. [2018-09-11 19:26:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-11 19:26:44,511 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:26:44,511 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:26:44,511 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:26:44,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1858373192, now seen corresponding path program 1 times [2018-09-11 19:26:44,512 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:26:44,512 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-09-11 19:26:44,513 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [86], [89], [105], [108], [111], [116], [121], [124], [127], [130], [373], [376], [377], [378] [2018-09-11 19:26:44,514 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 19:26:44,514 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:26:44,527 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:26:44,527 INFO L272 AbstractInterpreter]: Visited 23 different actions 37 times. Merged at 10 different actions 11 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 19 variables. [2018-09-11 19:26:44,537 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:26:44,564 INFO L232 lantSequenceWeakener]: Weakened 27 states. On average, predicates are now at 94.97% of their original sizes. [2018-09-11 19:26:44,564 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:26:44,727 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:26:44,728 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:26:44,728 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-11 19:26:44,728 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:26:44,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-11 19:26:44,729 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-11 19:26:44,729 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:26:44,729 INFO L87 Difference]: Start difference. First operand 119 states and 167 transitions. Second operand 8 states. [2018-09-11 19:26:44,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:26:44,996 INFO L93 Difference]: Finished difference Result 264 states and 363 transitions. [2018-09-11 19:26:44,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 19:26:44,996 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2018-09-11 19:26:44,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:26:44,999 INFO L225 Difference]: With dead ends: 264 [2018-09-11 19:26:44,999 INFO L226 Difference]: Without dead ends: 147 [2018-09-11 19:26:45,000 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-11 19:26:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-09-11 19:26:45,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 87. [2018-09-11 19:26:45,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-11 19:26:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 116 transitions. [2018-09-11 19:26:45,012 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 116 transitions. Word has length 30 [2018-09-11 19:26:45,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:26:45,012 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 116 transitions. [2018-09-11 19:26:45,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-11 19:26:45,013 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 116 transitions. [2018-09-11 19:26:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-11 19:26:45,014 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:26:45,014 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, 1, 1, 1, 1, 1] [2018-09-11 19:26:45,014 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:26:45,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1320221367, now seen corresponding path program 1 times [2018-09-11 19:26:45,015 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:26:45,015 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-09-11 19:26:45,015 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [86], [89], [92], [95], [100], [168], [171], [187], [203], [206], [209], [212], [373], [376], [377], [378] [2018-09-11 19:26:45,017 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 19:26:45,018 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:26:45,027 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:26:45,027 INFO L272 AbstractInterpreter]: Visited 25 different actions 36 times. Merged at 7 different actions 8 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 20 variables. [2018-09-11 19:26:45,037 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:26:45,072 INFO L232 lantSequenceWeakener]: Weakened 27 states. On average, predicates are now at 94.55% of their original sizes. [2018-09-11 19:26:45,073 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:26:45,153 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:26:45,154 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:26:45,154 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-11 19:26:45,154 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:26:45,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-11 19:26:45,154 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-11 19:26:45,155 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:26:45,155 INFO L87 Difference]: Start difference. First operand 87 states and 116 transitions. Second operand 8 states. [2018-09-11 19:26:45,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:26:45,666 INFO L93 Difference]: Finished difference Result 174 states and 233 transitions. [2018-09-11 19:26:45,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 19:26:45,667 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2018-09-11 19:26:45,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:26:45,669 INFO L225 Difference]: With dead ends: 174 [2018-09-11 19:26:45,669 INFO L226 Difference]: Without dead ends: 99 [2018-09-11 19:26:45,670 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-11 19:26:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-09-11 19:26:45,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 86. [2018-09-11 19:26:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-09-11 19:26:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2018-09-11 19:26:45,681 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 30 [2018-09-11 19:26:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:26:45,681 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2018-09-11 19:26:45,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-11 19:26:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2018-09-11 19:26:45,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-11 19:26:45,683 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:26:45,683 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:26:45,684 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:26:45,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1704565915, now seen corresponding path program 1 times [2018-09-11 19:26:45,684 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:26:45,684 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 34 with the following transitions: [2018-09-11 19:26:45,684 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [86], [89], [105], [108], [111], [116], [168], [268], [271], [287], [303], [318], [321], [324], [327], [373], [376], [377], [378] [2018-09-11 19:26:45,686 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 19:26:45,686 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:26:45,696 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 19:26:45,697 INFO L272 AbstractInterpreter]: Visited 29 different actions 41 times. Merged at 8 different actions 9 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 22 variables. [2018-09-11 19:26:45,731 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 19:26:45,754 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 19:26:45,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:26:45 BoogieIcfgContainer [2018-09-11 19:26:45,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:26:45,756 INFO L168 Benchmark]: Toolchain (without parser) took 5670.63 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -589.9 MB). Peak memory consumption was 189.7 MB. Max. memory is 7.1 GB. [2018-09-11 19:26:45,758 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:26:45,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.64 ms. Allocated memory is still 1.6 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 19:26:45,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:26:45,760 INFO L168 Benchmark]: Boogie Preprocessor took 72.42 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:26:45,761 INFO L168 Benchmark]: RCFGBuilder took 992.52 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2018-09-11 19:26:45,762 INFO L168 Benchmark]: TraceAbstraction took 4209.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 214.8 MB). Peak memory consumption was 214.8 MB. Max. memory is 7.1 GB. [2018-09-11 19:26:45,766 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 350.64 ms. Allocated memory is still 1.6 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 38.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.42 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 992.52 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4209.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 214.8 MB). Peak memory consumption was 214.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 389]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L5] int m_initSign = 1; [L6] int m_initVerify = 2; [L7] int m_Signature = 3; [L8] int m_sign = 4; [L9] int m_verify = 5; [L10] int m_update = 6; [L15] int q = 0; [L16] int method_id; [L19] int this_state = 0; [L22] COND TRUE 1 [L27] COND TRUE q == 0 [L28] COND TRUE __VERIFIER_nondet_int() [L30] COND TRUE 1 [L32] method_id = 3 [L34] COND FALSE !(0) [L38] q = 2 [L40] this_state=0 [L22] COND TRUE 1 [L27] COND FALSE !(q == 0) [L47] COND FALSE !(q == 1) [L99] COND TRUE q == 2 [L100] COND FALSE !(__VERIFIER_nondet_int()) [L116] COND TRUE __VERIFIER_nondet_int() [L118] COND TRUE 1 [L120] method_id = 2 [L122] COND FALSE !(0) [L126] q = 4 [L128] this_state=3 [L22] COND TRUE 1 [L27] COND FALSE !(q == 0) [L47] COND FALSE !(q == 1) [L99] COND FALSE !(q == 2) [L183] COND FALSE !(q == 3) [L283] COND TRUE q == 4 [L284] COND FALSE !(__VERIFIER_nondet_int()) [L300] COND FALSE !(__VERIFIER_nondet_int()) [L316] COND FALSE !(__VERIFIER_nondet_int()) [L332] COND TRUE __VERIFIER_nondet_int() [L334] COND TRUE 1 [L336] method_id = 5 [L338] COND TRUE (this_state != 3) [L389] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 1 error locations. UNKNOWN Result, 4.1s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 576 SDtfs, 1089 SDslu, 1001 SDs, 0 SdLazy, 584 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 156 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 7 AbstIntIterations, 6 AbstIntStrong, 0.9742992232353933 AbsIntWeakeningRatio, 0.6170212765957447 AbsIntAvgWeakeningVarsNumRemoved, 6.297872340425532 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 136 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/psyco_security_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-26-45-779.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/psyco_security_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-26-45-779.csv Received shutdown request...